diff -r 9c1f429cb56b -r b47dfa7a137d src/eric7/SystemUtilities/PythonUtilities.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/eric7/SystemUtilities/PythonUtilities.py Sun Dec 18 19:33:46 2022 +0100
@@ -0,0 +1,137 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2022 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing Python related utility functions.
+"""
+
+import os
+import sys
+import sysconfig
+
+
+def getPythonExecutable():
+ """
+ Function to determine the path of the (non-windowed) Python executable.
+
+ @return path of the Python executable
+ @rtype str
+ """
+ if sys.platform.startswith("linux"):
+ return sys.executable
+ elif sys.platform == "darwin":
+ return sys.executable.replace("pythonw", "python")
+ else:
+ return sys.executable.replace("pythonw.exe", "python.exe")
+
+
+def getPythonLibraryDirectory():
+ """
+ Function to determine the path to Python's library directory.
+
+ @return path to the Python library directory
+ @rtype str
+ """
+ return sysconfig.get_path("platlib")
+
+
+def getPythonScriptsDirectory():
+ """
+ Function to determine the path to Python's scripts directory.
+
+ @return path to the Python scripts directory
+ @rtype str
+ """
+ return sysconfig.get_path("scripts")
+
+
+def getPythonLibPath():
+ """
+ Function to determine the path to Python's library.
+
+ @return path to the Python library (string)
+ """
+ return sysconfig.get_path("platstdlib")
+
+
+def getPythonVersion():
+ """
+ Function to get the Python version (major, minor) as an integer value.
+
+ @return An integer representing major and minor version number (integer)
+ """
+ return sys.hexversion >> 16
+
+
+def determinePythonVersion(filename, source, editor=None):
+ """
+ Function to determine the python version of a given file.
+
+ @param filename name of the file with extension (str)
+ @param source of the file (str)
+ @param editor reference to the editor, if the file is opened
+ already (Editor object)
+ @return Python version if file is Python3 (int)
+ """
+ from eric7 import Preferences, Utilities
+ from eric7.EricWidgets.EricApplication import ericApp
+
+ pyAssignment = {
+ "Python3": 3,
+ "MicroPython": 3,
+ "Cython": 3,
+ }
+
+ if not editor:
+ viewManager = ericApp().getObject("ViewManager")
+ editor = viewManager.getOpenEditor(filename)
+
+ # Maybe the user has changed the language
+ if editor and editor.getFileType() in pyAssignment:
+ return pyAssignment[editor.getFileType()]
+
+ pyVer = 0
+ if filename:
+ if not source:
+ source = Utilities.readEncodedFile(filename)[0]
+ flags = Utilities.extractFlags(source)
+ ext = os.path.splitext(filename)[1]
+ py3Ext = Preferences.getPython("Python3Extensions")
+ project = ericApp().getObject("Project")
+ basename = os.path.basename(filename)
+
+ if "FileType" in flags:
+ pyVer = pyAssignment.get(flags["FileType"], 0)
+ elif project.isOpen() and project.isProjectFile(filename):
+ language = project.getEditorLexerAssoc(basename)
+ if not language:
+ language = Preferences.getEditorLexerAssoc(basename)
+ if language == "Python3":
+ pyVer = pyAssignment[language]
+
+ if pyVer:
+ # Skip the next tests
+ pass
+ elif (
+ Preferences.getProject("DeterminePyFromProject")
+ and project.isOpen()
+ and project.isProjectFile(filename)
+ and ext in py3Ext
+ ):
+ pyVer = pyAssignment.get(project.getProjectLanguage(), 0)
+ elif ext in py3Ext:
+ pyVer = 3
+ elif source:
+ if isinstance(source, str):
+ line0 = source.splitlines()[0]
+ else:
+ line0 = source[0]
+ if line0.startswith("#!") and (("python3" in line0) or ("python" in line0)):
+ pyVer = 3
+
+ if pyVer == 0 and ext in py3Ext:
+ pyVer = 3
+
+ return pyVer
