Mercurial Repositories > eric / file comparison
comparison: src/eric7/SystemUtilities/PythonUtilities.py
src/eric7/SystemUtilities/PythonUtilities.py
- branch
- eric7
- changeset 9624
- b47dfa7a137d
- child 9653
- e67609152c5e
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| 9623:9c1f429cb56b | 9624:b47dfa7a137d |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2022 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing Python related utility functions. | |
| 8 """ | |
| 9 | |
| 10 import os | |
| 11 import sys | |
| 12 import sysconfig | |
| 13 | |
| 14 | |
| 15 def getPythonExecutable(): | |
| 16 """ | |
| 17 Function to determine the path of the (non-windowed) Python executable. | |
| 18 | |
| 19 @return path of the Python executable | |
| 20 @rtype str | |
| 21 """ | |
| 22 if sys.platform.startswith("linux"): | |
| 23 return sys.executable | |
| 24 elif sys.platform == "darwin": | |
| 25 return sys.executable.replace("pythonw", "python") | |
| 26 else: | |
| 27 return sys.executable.replace("pythonw.exe", "python.exe") | |
| 28 | |
| 29 | |
| 30 def getPythonLibraryDirectory(): | |
| 31 """ | |
| 32 Function to determine the path to Python's library directory. | |
| 33 | |
| 34 @return path to the Python library directory | |
| 35 @rtype str | |
| 36 """ | |
| 37 return sysconfig.get_path("platlib") | |
| 38 | |
| 39 | |
| 40 def getPythonScriptsDirectory(): | |
| 41 """ | |
| 42 Function to determine the path to Python's scripts directory. | |
| 43 | |
| 44 @return path to the Python scripts directory | |
| 45 @rtype str | |
| 46 """ | |
| 47 return sysconfig.get_path("scripts") | |
| 48 | |
| 49 | |
| 50 def getPythonLibPath(): | |
| 51 """ | |
| 52 Function to determine the path to Python's library. | |
| 53 | |
| 54 @return path to the Python library (string) | |
| 55 """ | |
| 56 return sysconfig.get_path("platstdlib") | |
| 57 | |
| 58 | |
| 59 def getPythonVersion(): | |
| 60 """ | |
| 61 Function to get the Python version (major, minor) as an integer value. | |
| 62 | |
| 63 @return An integer representing major and minor version number (integer) | |
| 64 """ | |
| 65 return sys.hexversion >> 16 | |
| 66 | |
| 67 | |
| 68 def determinePythonVersion(filename, source, editor=None): | |
| 69 """ | |
| 70 Function to determine the python version of a given file. | |
| 71 | |
| 72 @param filename name of the file with extension (str) | |
| 73 @param source of the file (str) | |
| 74 @param editor reference to the editor, if the file is opened | |
| 75 already (Editor object) | |
| 76 @return Python version if file is Python3 (int) | |
| 77 """ | |
| 78 from eric7 import Preferences, Utilities | |
| 79 from eric7.EricWidgets.EricApplication import ericApp | |
| 80 | |
| 81 pyAssignment = { | |
| 82 "Python3": 3, | |
| 83 "MicroPython": 3, | |
| 84 "Cython": 3, | |
| 85 } | |
| 86 | |
| 87 if not editor: | |
| 88 viewManager = ericApp().getObject("ViewManager") | |
| 89 editor = viewManager.getOpenEditor(filename) | |
| 90 | |
| 91 # Maybe the user has changed the language | |
| 92 if editor and editor.getFileType() in pyAssignment: | |
| 93 return pyAssignment[editor.getFileType()] | |
| 94 | |
| 95 pyVer = 0 | |
| 96 if filename: | |
| 97 if not source: | |
| 98 source = Utilities.readEncodedFile(filename)[0] | |
| 99 flags = Utilities.extractFlags(source) | |
| 100 ext = os.path.splitext(filename)[1] | |
| 101 py3Ext = Preferences.getPython("Python3Extensions") | |
| 102 project = ericApp().getObject("Project") | |
| 103 basename = os.path.basename(filename) | |
| 104 | |
| 105 if "FileType" in flags: | |
| 106 pyVer = pyAssignment.get(flags["FileType"], 0) | |
| 107 elif project.isOpen() and project.isProjectFile(filename): | |
| 108 language = project.getEditorLexerAssoc(basename) | |
| 109 if not language: | |
| 110 language = Preferences.getEditorLexerAssoc(basename) | |
| 111 if language == "Python3": | |
| 112 pyVer = pyAssignment[language] | |
| 113 | |
| 114 if pyVer: | |
| 115 # Skip the next tests | |
| 116 pass | |
| 117 elif ( | |
| 118 Preferences.getProject("DeterminePyFromProject") | |
| 119 and project.isOpen() | |
| 120 and project.isProjectFile(filename) | |
| 121 and ext in py3Ext | |
| 122 ): | |
| 123 pyVer = pyAssignment.get(project.getProjectLanguage(), 0) | |
| 124 elif ext in py3Ext: | |
| 125 pyVer = 3 | |
| 126 elif source: | |
| 127 if isinstance(source, str): | |
| 128 line0 = source.splitlines()[0] | |
| 129 else: | |
| 130 line0 = source[0] | |
| 131 if line0.startswith("#!") and (("python3" in line0) or ("python" in line0)): | |
| 132 pyVer = 3 | |
| 133 | |
| 134 if pyVer == 0 and ext in py3Ext: | |
| 135 pyVer = 3 | |
| 136 | |
| 137 return pyVer |
