diff env/lib/python3.7/site-packages/libpasteurize/main.py @ 5:9b1c78e6ba9c draft default tip

"planemo upload commit 6c0a8142489327ece472c84e558c47da711a9142"
author shellac
date Mon, 01 Jun 2020 08:59:25 -0400
parents 79f47841a781
children
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--- a/env/lib/python3.7/site-packages/libpasteurize/main.py	Thu May 14 16:47:39 2020 -0400
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,204 +0,0 @@
-"""
-pasteurize: automatic conversion of Python 3 code to clean 2/3 code
-===================================================================
-
-``pasteurize`` attempts to convert existing Python 3 code into source-compatible
-Python 2 and 3 code.
-
-Use it like this on Python 3 code:
-
-  $ pasteurize --verbose mypython3script.py
-
-This removes any Py3-only syntax (e.g. new metaclasses) and adds these
-import lines:
-
-    from __future__ import absolute_import
-    from __future__ import division
-    from __future__ import print_function
-    from __future__ import unicode_literals
-    from future import standard_library
-    standard_library.install_hooks()
-    from builtins import *
-
-To write changes to the files, use the -w flag.
-
-It also adds any other wrappers needed for Py2/3 compatibility.
-
-Note that separate stages are not available (or needed) when converting from
-Python 3 with ``pasteurize`` as they are when converting from Python 2 with
-``futurize``.
-
-The --all-imports option forces adding all ``__future__`` imports,
-``builtins`` imports, and standard library aliases, even if they don't
-seem necessary for the current state of each module. (This can simplify
-testing, and can reduce the need to think about Py2 compatibility when editing
-the code further.)
-
-"""
-
-from __future__ import (absolute_import, print_function, unicode_literals)
-
-import sys
-import logging
-import optparse
-from lib2to3.main import main, warn, StdoutRefactoringTool
-from lib2to3 import refactor
-
-from future import __version__
-from libpasteurize.fixes import fix_names
-
-
-def main(args=None):
-    """Main program.
-
-    Returns a suggested exit status (0, 1, 2).
-    """
-    # Set up option parser
-    parser = optparse.OptionParser(usage="pasteurize [options] file|dir ...")
-    parser.add_option("-V", "--version", action="store_true",
-                      help="Report the version number of pasteurize")
-    parser.add_option("-a", "--all-imports", action="store_true",
-                      help="Adds all __future__ and future imports to each module")
-    parser.add_option("-f", "--fix", action="append", default=[],
-                      help="Each FIX specifies a transformation; default: all")
-    parser.add_option("-j", "--processes", action="store", default=1,
-                      type="int", help="Run 2to3 concurrently")
-    parser.add_option("-x", "--nofix", action="append", default=[],
-                      help="Prevent a fixer from being run.")
-    parser.add_option("-l", "--list-fixes", action="store_true",
-                      help="List available transformations")
-    # parser.add_option("-p", "--print-function", action="store_true",
-    #                   help="Modify the grammar so that print() is a function")
-    parser.add_option("-v", "--verbose", action="store_true",
-                      help="More verbose logging")
-    parser.add_option("--no-diffs", action="store_true",
-                      help="Don't show diffs of the refactoring")
-    parser.add_option("-w", "--write", action="store_true",
-                      help="Write back modified files")
-    parser.add_option("-n", "--nobackups", action="store_true", default=False,
-                      help="Don't write backups for modified files.")
-
-    # Parse command line arguments
-    refactor_stdin = False
-    flags = {}
-    options, args = parser.parse_args(args)
-    fixer_pkg = 'libpasteurize.fixes'
-    avail_fixes = fix_names
-    flags["print_function"] = True
-
-    if not options.write and options.no_diffs:
-        warn("not writing files and not printing diffs; that's not very useful")
-    if not options.write and options.nobackups:
-        parser.error("Can't use -n without -w")
-    if options.version:
-        print(__version__)
-        return 0
-    if options.list_fixes:
-        print("Available transformations for the -f/--fix option:")
-        for fixname in sorted(avail_fixes):
-            print(fixname)
-        if not args:
-            return 0
-    if not args:
-        print("At least one file or directory argument required.",
-              file=sys.stderr)
-        print("Use --help to show usage.", file=sys.stderr)
-        return 2
-    if "-" in args:
-        refactor_stdin = True
-        if options.write:
-            print("Can't write to stdin.", file=sys.stderr)
-            return 2
-
-    # Set up logging handler
-    level = logging.DEBUG if options.verbose else logging.INFO
-    logging.basicConfig(format='%(name)s: %(message)s', level=level)
-
-    unwanted_fixes = set()
-    for fix in options.nofix:
-        if ".fix_" in fix:
-            unwanted_fixes.add(fix)
-        else:
-            # Infer the full module name for the fixer.
-            # First ensure that no names clash (e.g.
-            # lib2to3.fixes.fix_blah and libfuturize.fixes.fix_blah):
-            found = [f for f in avail_fixes
-                     if f.endswith('fix_{0}'.format(fix))]
-            if len(found) > 1:
-                print("Ambiguous fixer name. Choose a fully qualified "
-                      "module name instead from these:\n" +
-                      "\n".join("  " + myf for myf in found),
-                      file=sys.stderr)
-                return 2
-            elif len(found) == 0:
-                print("Unknown fixer. Use --list-fixes or -l for a list.",
-                      file=sys.stderr)
-                return 2
-            unwanted_fixes.add(found[0])
-
-    extra_fixes = set()
-    if options.all_imports:
-        prefix = 'libpasteurize.fixes.'
-        extra_fixes.add(prefix + 'fix_add_all__future__imports')
-        extra_fixes.add(prefix + 'fix_add_future_standard_library_import')
-        extra_fixes.add(prefix + 'fix_add_all_future_builtins')
-
-    explicit = set()
-    if options.fix:
-        all_present = False
-        for fix in options.fix:
-            if fix == 'all':
-                all_present = True
-            else:
-                if ".fix_" in fix:
-                    explicit.add(fix)
-                else:
-                    # Infer the full module name for the fixer.
-                    # First ensure that no names clash (e.g.
-                    # lib2to3.fixes.fix_blah and libpasteurize.fixes.fix_blah):
-                    found = [f for f in avail_fixes
-                             if f.endswith('fix_{0}'.format(fix))]
-                    if len(found) > 1:
-                        print("Ambiguous fixer name. Choose a fully qualified "
-                              "module name instead from these:\n" +
-                              "\n".join("  " + myf for myf in found),
-                              file=sys.stderr)
-                        return 2
-                    elif len(found) == 0:
-                        print("Unknown fixer. Use --list-fixes or -l for a list.",
-                              file=sys.stderr)
-                        return 2
-                    explicit.add(found[0])
-        if len(explicit & unwanted_fixes) > 0:
-            print("Conflicting usage: the following fixers have been "
-                  "simultaneously requested and disallowed:\n" +
-                  "\n".join("  " + myf for myf in (explicit & unwanted_fixes)),
-                  file=sys.stderr)
-            return 2
-        requested = avail_fixes.union(explicit) if all_present else explicit
-    else:
-        requested = avail_fixes.union(explicit)
-
-    fixer_names = requested | extra_fixes - unwanted_fixes
-
-    # Initialize the refactoring tool
-    rt = StdoutRefactoringTool(sorted(fixer_names), flags, set(),
-                               options.nobackups, not options.no_diffs)
-
-    # Refactor all files and directories passed as arguments
-    if not rt.errors:
-        if refactor_stdin:
-            rt.refactor_stdin()
-        else:
-            try:
-                rt.refactor(args, options.write, None,
-                            options.processes)
-            except refactor.MultiprocessingUnsupported:
-                assert options.processes > 1
-                print("Sorry, -j isn't " \
-                      "supported on this platform.", file=sys.stderr)
-                return 1
-        rt.summarize()
-
-    # Return error status (0 if rt.errors is zero)
-    return int(bool(rt.errors))