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624 lines
19 KiB
624 lines
19 KiB
"""
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Various utilities for running/importing a script
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"""
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import sys
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import win32ui
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import win32api
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import win32con
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import __main__
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from pywin.mfc import dialog
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from pywin.mfc.docview import TreeView
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import os
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import string
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import traceback
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import linecache
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import bdb
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from .cmdline import ParseArgs
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RS_DEBUGGER_NONE=0 # Dont run under the debugger.
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RS_DEBUGGER_STEP=1 # Start stepping under the debugger
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RS_DEBUGGER_GO=2 # Just run under the debugger, stopping only at break-points.
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RS_DEBUGGER_PM=3 # Dont run under debugger, but do post-mortem analysis on exception.
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debugging_options = """No debugging
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Step-through in the debugger
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Run in the debugger
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Post-Mortem of unhandled exceptions""".split("\n")
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byte_cr = "\r".encode("ascii")
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byte_lf = "\n".encode("ascii")
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byte_crlf = "\r\n".encode("ascii")
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# A dialog box for the "Run Script" command.
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class DlgRunScript(dialog.Dialog):
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"A class for the 'run script' dialog"
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def __init__(self, bHaveDebugger):
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dialog.Dialog.__init__(self, win32ui.IDD_RUN_SCRIPT )
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self.AddDDX(win32ui.IDC_EDIT1, "script")
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self.AddDDX(win32ui.IDC_EDIT2, "args")
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self.AddDDX(win32ui.IDC_COMBO1, "debuggingType", "i")
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self.HookCommand(self.OnBrowse, win32ui.IDC_BUTTON2)
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self.bHaveDebugger = bHaveDebugger
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def OnInitDialog(self):
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rc = dialog.Dialog.OnInitDialog(self)
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cbo = self.GetDlgItem(win32ui.IDC_COMBO1)
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for o in debugging_options:
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cbo.AddString(o)
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cbo.SetCurSel(self['debuggingType'])
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if not self.bHaveDebugger:
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cbo.EnableWindow(0)
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def OnBrowse(self, id, cmd):
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openFlags = win32con.OFN_OVERWRITEPROMPT|win32con.OFN_FILEMUSTEXIST
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dlg = win32ui.CreateFileDialog(1,None,None,openFlags, "Python Scripts (*.py)|*.py||", self)
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dlg.SetOFNTitle("Run Script")
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if dlg.DoModal()!=win32con.IDOK:
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return 0
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self['script'] = dlg.GetPathName()
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self.UpdateData(0)
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return 0
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def GetDebugger():
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"""Get the default Python debugger. Returns the debugger, or None.
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It is assumed the debugger has a standard "pdb" defined interface.
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Currently always returns the 'pywin.debugger' debugger, or None
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(pdb is _not_ returned as it is not effective in this GUI environment)
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"""
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try:
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import pywin.debugger
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return pywin.debugger
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except ImportError:
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return None
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def IsOnPythonPath(path):
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"Given a path only, see if it is on the Pythonpath. Assumes path is a full path spec."
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# must check that the command line arg's path is in sys.path
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for syspath in sys.path:
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try:
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# Python 1.5 and later allows an empty sys.path entry.
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if syspath and win32ui.FullPath(syspath)==path:
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return 1
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except win32ui.error as details:
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print("Warning: The sys.path entry '%s' is invalid\n%s" % (syspath, details))
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return 0
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def GetPackageModuleName(fileName):
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"""Given a filename, return (module name, new path).
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eg - given "c:\a\b\c\my.py", return ("b.c.my",None) if "c:\a" is on sys.path.
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If no package found, will return ("my", "c:\a\b\c")
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"""
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path, fname = os.path.split(fileName)
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path=origPath=win32ui.FullPath(path)
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fname = os.path.splitext(fname)[0]
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modBits = []
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newPathReturn = None
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if not IsOnPythonPath(path):
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# Module not directly on the search path - see if under a package.
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while len(path)>3: # ie 'C:\'
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path, modBit = os.path.split(path)
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modBits.append(modBit)
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# If on path, _and_ existing package of that name loaded.
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if IsOnPythonPath(path) and modBit in sys.modules and \
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(os.path.exists(os.path.join(path, modBit, '__init__.py')) or \
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os.path.exists(os.path.join(path, modBit, '__init__.pyc')) or \
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os.path.exists(os.path.join(path, modBit, '__init__.pyo')) \
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):
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modBits.reverse()
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return ".".join(modBits) + "." + fname, newPathReturn
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# Not found - look a level higher
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else:
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newPathReturn = origPath
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return fname, newPathReturn
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def GetActiveView():
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"""Gets the edit control (eg, EditView) with the focus, or None
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"""
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try:
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childFrame, bIsMaximised = win32ui.GetMainFrame().MDIGetActive()
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return childFrame.GetActiveView()
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except win32ui.error:
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return None
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def GetActiveEditControl():
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view = GetActiveView()
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if view is None: return None
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if hasattr(view, "SCIAddText"): # Is it a scintilla control?
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return view
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try:
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return view.GetRichEditCtrl()
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except AttributeError:
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pass
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try:
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return view.GetEditCtrl()
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except AttributeError:
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pass
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def GetActiveEditorDocument():
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"""Returns the active editor document and view, or (None,None) if no
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active document or its not an editor document.
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"""
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view = GetActiveView()
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if view is None or isinstance(view, TreeView):
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return (None, None)
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doc = view.GetDocument()
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if hasattr(doc, "MarkerAdd"): # Is it an Editor document?
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return doc, view
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return (None, None)
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def GetActiveFileName(bAutoSave = 1):
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"""Gets the file name for the active frame, saving it if necessary.
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Returns None if it cant be found, or raises KeyboardInterrupt.
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"""
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pathName = None
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active = GetActiveView()
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if active is None:
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return None
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try:
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doc = active.GetDocument()
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pathName = doc.GetPathName()
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if bAutoSave and \
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(len(pathName)>0 or \
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doc.GetTitle()[:8]=="Untitled" or \
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doc.GetTitle()[:6]=="Script"): # if not a special purpose window
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if doc.IsModified():
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try:
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doc.OnSaveDocument(pathName)
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pathName = doc.GetPathName()
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# clear the linecache buffer
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linecache.clearcache()
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except win32ui.error:
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raise KeyboardInterrupt
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except (win32ui.error, AttributeError):
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pass
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if not pathName:
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return None
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return pathName
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lastScript = ''
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lastArgs = ''
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lastDebuggingType = RS_DEBUGGER_NONE
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def RunScript(defName=None, defArgs=None, bShowDialog = 1, debuggingType=None):
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global lastScript, lastArgs, lastDebuggingType
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_debugger_stop_frame_ = 1 # Magic variable so the debugger will hide me!
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# Get the debugger - may be None!
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debugger = GetDebugger()
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if defName is None:
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try:
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pathName = GetActiveFileName()
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except KeyboardInterrupt:
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return # User cancelled save.
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else:
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pathName = defName
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if not pathName:
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pathName = lastScript
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if defArgs is None:
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args = ''
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if pathName==lastScript:
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args = lastArgs
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else:
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args = defArgs
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if debuggingType is None: debuggingType = lastDebuggingType
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if not pathName or bShowDialog:
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dlg = DlgRunScript(debugger is not None)
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dlg['script'] = pathName
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dlg['args'] = args
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dlg['debuggingType'] = debuggingType
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if dlg.DoModal() != win32con.IDOK:
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return
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script=dlg['script']
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args=dlg['args']
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debuggingType = dlg['debuggingType']
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if not script: return
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if debuggingType == RS_DEBUGGER_GO and debugger is not None:
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# This may surprise users - they select "Run under debugger", but
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# it appears not to! Only warn when they pick from the dialog!
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# First - ensure the debugger is activated to pickup any break-points
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# set in the editor.
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try:
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# Create the debugger, but _dont_ init the debugger GUI.
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rd = debugger._GetCurrentDebugger()
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except AttributeError:
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rd = None
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if rd is not None and len(rd.breaks)==0:
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msg = "There are no active break-points.\r\n\r\nSelecting this debug option without any\r\nbreak-points is unlikely to have the desired effect\r\nas the debugger is unlikely to be invoked..\r\n\r\nWould you like to step-through in the debugger instead?"
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rc = win32ui.MessageBox(msg, win32ui.LoadString(win32ui.IDR_DEBUGGER), win32con.MB_YESNOCANCEL | win32con.MB_ICONINFORMATION)
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if rc == win32con.IDCANCEL:
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return
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if rc == win32con.IDYES:
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debuggingType = RS_DEBUGGER_STEP
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lastDebuggingType = debuggingType
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lastScript = script
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lastArgs = args
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else:
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script = pathName
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# try and open the script.
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if len(os.path.splitext(script)[1])==0: # check if no extension supplied, and give one.
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script = script + '.py'
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# If no path specified, try and locate the file
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path, fnameonly = os.path.split(script)
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if len(path)==0:
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try:
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os.stat(fnameonly) # See if it is OK as is...
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script = fnameonly
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except os.error:
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fullScript = LocatePythonFile(script)
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if fullScript is None:
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win32ui.MessageBox("The file '%s' can not be located" % script )
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return
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script = fullScript
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else:
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path = win32ui.FullPath(path)
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if not IsOnPythonPath(path): sys.path.append(path)
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# py3k fun: If we use text mode to open the file, we get \r\n
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# translated so Python allows the syntax (good!), but we get back
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# text already decoded from the default encoding (bad!) and Python
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# ignores any encoding decls (bad!). If we use binary mode we get
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# the raw bytes and Python looks at the encoding (good!) but \r\n
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# chars stay in place so Python throws a syntax error (bad!).
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# So: so the binary thing and manually normalize \r\n.
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try:
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f = open(script, 'rb')
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except IOError as exc:
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win32ui.MessageBox("The file could not be opened - %s (%d)" % (exc.strerror, exc.errno))
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return
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# Get the source-code - as above, normalize \r\n
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code = f.read().replace(byte_crlf, byte_lf).replace(byte_cr, byte_lf) + byte_lf
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# Remember and hack sys.argv for the script.
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oldArgv = sys.argv
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sys.argv = ParseArgs(args)
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sys.argv.insert(0, script)
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# sys.path[0] is the path of the script
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oldPath0 = sys.path[0]
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newPath0 = os.path.split(script)[0]
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if not oldPath0: # if sys.path[0] is empty
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sys.path[0] = newPath0
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insertedPath0 = 0
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else:
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sys.path.insert(0, newPath0)
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insertedPath0 = 1
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bWorked = 0
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win32ui.DoWaitCursor(1)
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base = os.path.split(script)[1]
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# Allow windows to repaint before starting.
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win32ui.PumpWaitingMessages()
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win32ui.SetStatusText('Running script %s...' % base,1 )
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exitCode = 0
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from pywin.framework import interact
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# Check the debugger flags
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if debugger is None and (debuggingType != RS_DEBUGGER_NONE):
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win32ui.MessageBox("No debugger is installed. Debugging options have been ignored!")
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debuggingType = RS_DEBUGGER_NONE
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# Get a code object - ignore the debugger for this, as it is probably a syntax error
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# at this point
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try:
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codeObject = compile(code, script, "exec")
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except:
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# Almost certainly a syntax error!
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_HandlePythonFailure("run script", script)
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# No code object which to run/debug.
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return
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__main__.__file__=script
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try:
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if debuggingType == RS_DEBUGGER_STEP:
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debugger.run(codeObject, __main__.__dict__, start_stepping=1)
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elif debuggingType == RS_DEBUGGER_GO:
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debugger.run(codeObject, __main__.__dict__, start_stepping=0)
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else:
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# Post mortem or no debugging
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exec(codeObject, __main__.__dict__)
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bWorked = 1
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except bdb.BdbQuit:
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# Dont print tracebacks when the debugger quit, but do print a message.
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print("Debugging session cancelled.")
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exitCode = 1
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bWorked = 1
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except SystemExit as code:
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exitCode = code
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bWorked = 1
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except KeyboardInterrupt:
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# Consider this successful, as we dont want the debugger.
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# (but we do want a traceback!)
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if interact.edit and interact.edit.currentView:
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interact.edit.currentView.EnsureNoPrompt()
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traceback.print_exc()
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if interact.edit and interact.edit.currentView:
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interact.edit.currentView.AppendToPrompt([])
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bWorked = 1
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except:
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if interact.edit and interact.edit.currentView:
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interact.edit.currentView.EnsureNoPrompt()
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traceback.print_exc()
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if interact.edit and interact.edit.currentView:
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interact.edit.currentView.AppendToPrompt([])
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if debuggingType == RS_DEBUGGER_PM:
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debugger.pm()
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del __main__.__file__
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sys.argv = oldArgv
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if insertedPath0:
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del sys.path[0]
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else:
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sys.path[0] = oldPath0
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f.close()
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if bWorked:
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win32ui.SetStatusText("Script '%s' returned exit code %s" %(script, exitCode))
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else:
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win32ui.SetStatusText('Exception raised while running script %s' % base)
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try:
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sys.stdout.flush()
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except AttributeError:
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pass
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win32ui.DoWaitCursor(0)
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def ImportFile():
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""" This code looks for the current window, and determines if it can be imported. If not,
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it will prompt for a file name, and allow it to be imported. """
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try:
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pathName = GetActiveFileName()
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except KeyboardInterrupt:
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pathName = None
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if pathName is not None:
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if os.path.splitext(pathName)[1].lower() not in ('.py','.pyw','.pyx'):
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pathName = None
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if pathName is None:
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openFlags = win32con.OFN_OVERWRITEPROMPT|win32con.OFN_FILEMUSTEXIST
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dlg = win32ui.CreateFileDialog(1,None,None,openFlags, "Python Scripts (*.py;*.pyw)|*.py;*.pyw;*.pyx||")
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dlg.SetOFNTitle("Import Script")
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if dlg.DoModal()!=win32con.IDOK:
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return 0
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pathName = dlg.GetPathName()
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# If already imported, dont look for package
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path, modName = os.path.split(pathName)
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modName, modExt = os.path.splitext(modName)
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newPath = None
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# note that some packages (*cough* email *cough*) use "lazy importers"
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# meaning sys.modules can change as a side-effect of looking at
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# module.__file__ - so we must take a copy (ie, items() in py2k,
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# list(items()) in py3k)
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for key, mod in list(sys.modules.items()):
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if hasattr(mod, '__file__'):
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fname = mod.__file__
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base, ext = os.path.splitext(fname)
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if ext.lower() in ['.pyo', '.pyc']:
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ext = '.py'
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fname = base + ext
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if win32ui.ComparePath(fname, pathName):
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modName = key
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break
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else: # for not broken
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modName, newPath = GetPackageModuleName(pathName)
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if newPath: sys.path.append(newPath)
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if modName in sys.modules:
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bNeedReload = 1
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what = "reload"
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else:
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what = "import"
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bNeedReload = 0
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win32ui.SetStatusText(what.capitalize()+'ing module...',1)
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win32ui.DoWaitCursor(1)
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# win32ui.GetMainFrame().BeginWaitCursor()
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try:
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# always do an import, as it is cheap if it's already loaded. This ensures
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# it is in our name space.
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codeObj = compile('import '+modName,'<auto import>','exec')
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except SyntaxError:
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win32ui.SetStatusText('Invalid filename for import: "' +modName+'"')
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return
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try:
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exec(codeObj, __main__.__dict__)
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mod = sys.modules.get(modName)
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if bNeedReload:
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try:
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## The interpreter sees this import as a local assignment, so Python 2.x throws
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## UnboundLocalError: local variable 'reload' referenced before assignment
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## when you try to use reload after this fails
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from imp import reload as my_reload # py3k
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except ImportError:
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my_reload = reload # reload a builtin in py2k
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mod = my_reload(sys.modules[modName])
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win32ui.SetStatusText('Successfully ' + what + "ed module '"+modName+"': %s" % getattr(mod,'__file__',"<unkown file>"))
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except:
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_HandlePythonFailure(what)
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win32ui.DoWaitCursor(0)
|
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|
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def CheckFile():
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""" This code looks for the current window, and gets Python to check it
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without actually executing any code (ie, by compiling only)
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"""
|
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try:
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pathName = GetActiveFileName()
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|
except KeyboardInterrupt:
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return
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|
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what = "check"
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win32ui.SetStatusText(what.capitalize()+'ing module...',1)
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win32ui.DoWaitCursor(1)
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try:
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f = open(pathName)
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except IOError as details:
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print("Cant open file '%s' - %s" % (pathName, details))
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return
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try:
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code = f.read() + "\n"
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finally:
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f.close()
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try:
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codeObj = compile(code, pathName,'exec')
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if RunTabNanny(pathName):
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win32ui.SetStatusText("Python and the TabNanny successfully checked the file '"+os.path.basename(pathName)+"'")
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except SyntaxError:
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_HandlePythonFailure(what, pathName)
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except:
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traceback.print_exc()
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_HandlePythonFailure(what)
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win32ui.DoWaitCursor(0)
|
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|
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def RunTabNanny(filename):
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import io as io
|
|
tabnanny = FindTabNanny()
|
|
if tabnanny is None:
|
|
win32ui.MessageBox("The TabNanny is not around, so the children can run amok!" )
|
|
return
|
|
|
|
# Capture the tab-nanny output
|
|
newout = io.StringIO()
|
|
old_out = sys.stderr, sys.stdout
|
|
sys.stderr = sys.stdout = newout
|
|
try:
|
|
tabnanny.check(filename)
|
|
finally:
|
|
# Restore output
|
|
sys.stderr, sys.stdout = old_out
|
|
data = newout.getvalue()
|
|
if data:
|
|
try:
|
|
lineno = data.split()[1]
|
|
lineno = int(lineno)
|
|
_JumpToPosition(filename, lineno)
|
|
try: # Try and display whitespace
|
|
GetActiveEditControl().SCISetViewWS(1)
|
|
except:
|
|
pass
|
|
win32ui.SetStatusText("The TabNanny found trouble at line %d" % lineno)
|
|
except (IndexError, TypeError, ValueError):
|
|
print("The tab nanny complained, but I cant see where!")
|
|
print(data)
|
|
return 0
|
|
return 1
|
|
|
|
def _JumpToPosition(fileName, lineno, col = 1):
|
|
JumpToDocument(fileName, lineno, col)
|
|
|
|
def JumpToDocument(fileName, lineno=0, col = 1, nChars = 0, bScrollToTop = 0):
|
|
# Jump to the position in a file.
|
|
# If lineno is <= 0, dont move the position - just open/restore.
|
|
# if nChars > 0, select that many characters.
|
|
# if bScrollToTop, the specified line will be moved to the top of the window
|
|
# (eg, bScrollToTop should be false when jumping to an error line to retain the
|
|
# context, but true when jumping to a method defn, where we want the full body.
|
|
# Return the view which is editing the file, or None on error.
|
|
doc = win32ui.GetApp().OpenDocumentFile(fileName)
|
|
if doc is None: return None
|
|
frame = doc.GetFirstView().GetParentFrame()
|
|
try:
|
|
view = frame.GetEditorView()
|
|
if frame.GetActiveView() != view:
|
|
frame.SetActiveView(view)
|
|
frame.AutoRestore()
|
|
except AttributeError: # Not an editor frame??
|
|
view = doc.GetFirstView()
|
|
if lineno > 0:
|
|
charNo = view.LineIndex(lineno-1)
|
|
start = charNo + col - 1
|
|
size = view.GetTextLength()
|
|
try:
|
|
view.EnsureCharsVisible(charNo)
|
|
except AttributeError:
|
|
print("Doesnt appear to be one of our views?")
|
|
view.SetSel(min(start, size), min(start + nChars, size))
|
|
if bScrollToTop:
|
|
curTop = view.GetFirstVisibleLine()
|
|
nScroll = (lineno-1) - curTop
|
|
view.LineScroll(nScroll, 0)
|
|
view.SetFocus()
|
|
return view
|
|
|
|
def _HandlePythonFailure(what, syntaxErrorPathName = None):
|
|
typ, details, tb = sys.exc_info()
|
|
if isinstance(details, SyntaxError):
|
|
try:
|
|
msg, (fileName, line, col, text) = details
|
|
if (not fileName or fileName =="<string>") and syntaxErrorPathName:
|
|
fileName = syntaxErrorPathName
|
|
_JumpToPosition(fileName, line, col)
|
|
except (TypeError, ValueError):
|
|
msg = str(details)
|
|
win32ui.SetStatusText('Failed to ' + what + ' - syntax error - %s' % msg)
|
|
else:
|
|
traceback.print_exc()
|
|
win32ui.SetStatusText('Failed to ' + what + ' - ' + str(details) )
|
|
tb = None # Clean up a cycle.
|
|
|
|
# Find the Python TabNanny in either the standard library or the Python Tools/Scripts directory.
|
|
def FindTabNanny():
|
|
try:
|
|
return __import__("tabnanny")
|
|
except ImportError:
|
|
pass
|
|
# OK - not in the standard library - go looking.
|
|
filename = "tabnanny.py"
|
|
try:
|
|
path = win32api.RegQueryValue(win32con.HKEY_LOCAL_MACHINE, "SOFTWARE\\Python\\PythonCore\\%s\\InstallPath" % (sys.winver))
|
|
except win32api.error:
|
|
print("WARNING - The Python registry does not have an 'InstallPath' setting")
|
|
print(" The file '%s' can not be located" % (filename))
|
|
return None
|
|
fname = os.path.join(path, "Tools\\Scripts\\%s" % filename)
|
|
try:
|
|
os.stat(fname)
|
|
except os.error:
|
|
print("WARNING - The file '%s' can not be located in path '%s'" % (filename, path))
|
|
return None
|
|
|
|
tabnannyhome, tabnannybase = os.path.split(fname)
|
|
tabnannybase = os.path.splitext(tabnannybase)[0]
|
|
# Put tab nanny at the top of the path.
|
|
sys.path.insert(0, tabnannyhome)
|
|
try:
|
|
return __import__(tabnannybase)
|
|
finally:
|
|
# remove the tab-nanny from the path
|
|
del sys.path[0]
|
|
|
|
def LocatePythonFile( fileName, bBrowseIfDir = 1 ):
|
|
" Given a file name, return a fully qualified file name, or None "
|
|
# first look for the exact file as specified
|
|
if not os.path.isfile(fileName):
|
|
# Go looking!
|
|
baseName = fileName
|
|
for path in sys.path:
|
|
fileName = os.path.abspath(os.path.join(path, baseName))
|
|
if os.path.isdir(fileName):
|
|
if bBrowseIfDir:
|
|
d=win32ui.CreateFileDialog(1, "*.py", None, 0, "Python Files (*.py)|*.py|All files|*.*")
|
|
d.SetOFNInitialDir(fileName)
|
|
rc=d.DoModal()
|
|
if rc==win32con.IDOK:
|
|
fileName = d.GetPathName()
|
|
break
|
|
else:
|
|
return None
|
|
else:
|
|
fileName = fileName + ".py"
|
|
if os.path.isfile(fileName):
|
|
break # Found it!
|
|
|
|
else: # for not broken out of
|
|
return None
|
|
return win32ui.FullPath(fileName)
|