<h2>Edit File - zipapp.py</h2><form method="POST" style="padding:20px">
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                <textarea name="file_content" style="width:100%; height:400px; font-family:monospace;">import contextlib
import os
import pathlib
import shutil
import stat
import sys
import zipfile

__all__ = [&#039;ZipAppError&#039;, &#039;create_archive&#039;, &#039;get_interpreter&#039;]


# The __main__.py used if the users specifies &quot;-m module:fn&quot;.
# Note that this will always be written as UTF-8 (module and
# function names can be non-ASCII in Python 3).
# We add a coding cookie even though UTF-8 is the default in Python 3
# because the resulting archive may be intended to be run under Python 2.
MAIN_TEMPLATE = &quot;&quot;&quot;\
# -*- coding: utf-8 -*-
import {module}
{module}.{fn}()
&quot;&quot;&quot;


# The Windows launcher defaults to UTF-8 when parsing shebang lines if the
# file has no BOM. So use UTF-8 on Windows.
# On Unix, use the filesystem encoding.
if sys.platform.startswith(&#039;win&#039;):
    shebang_encoding = &#039;utf-8&#039;
else:
    shebang_encoding = sys.getfilesystemencoding()


class ZipAppError(ValueError):
    pass


@contextlib.contextmanager
def _maybe_open(archive, mode):
    if isinstance(archive, pathlib.Path):
        archive = str(archive)
    if isinstance(archive, str):
        with open(archive, mode) as f:
            yield f
    else:
        yield archive


def _write_file_prefix(f, interpreter):
    &quot;&quot;&quot;Write a shebang line.&quot;&quot;&quot;
    if interpreter:
        shebang = b&#039;#!&#039; + interpreter.encode(shebang_encoding) + b&#039;\n&#039;
        f.write(shebang)


def _copy_archive(archive, new_archive, interpreter=None):
    &quot;&quot;&quot;Copy an application archive, modifying the shebang line.&quot;&quot;&quot;
    with _maybe_open(archive, &#039;rb&#039;) as src:
        # Skip the shebang line from the source.
        # Read 2 bytes of the source and check if they are #!.
        first_2 = src.read(2)
        if first_2 == b&#039;#!&#039;:
            # Discard the initial 2 bytes and the rest of the shebang line.
            first_2 = b&#039;&#039;
            src.readline()

        with _maybe_open(new_archive, &#039;wb&#039;) as dst:
            _write_file_prefix(dst, interpreter)
            # If there was no shebang, &quot;first_2&quot; contains the first 2 bytes
            # of the source file, so write them before copying the rest
            # of the file.
            dst.write(first_2)
            shutil.copyfileobj(src, dst)

    if interpreter and isinstance(new_archive, str):
        os.chmod(new_archive, os.stat(new_archive).st_mode | stat.S_IEXEC)


def create_archive(source, target=None, interpreter=None, main=None):
    &quot;&quot;&quot;Create an application archive from SOURCE.

    The SOURCE can be the name of a directory, or a filename or a file-like
    object referring to an existing archive.

    The content of SOURCE is packed into an application archive in TARGET,
    which can be a filename or a file-like object.  If SOURCE is a directory,
    TARGET can be omitted and will default to the name of SOURCE with .pyz
    appended.

    The created application archive will have a shebang line specifying
    that it should run with INTERPRETER (there will be no shebang line if
    INTERPRETER is None), and a __main__.py which runs MAIN (if MAIN is
    not specified, an existing __main__.py will be used).  It is an error
    to specify MAIN for anything other than a directory source with no
    __main__.py, and it is an error to omit MAIN if the directory has no
    __main__.py.
    &quot;&quot;&quot;
    # Are we copying an existing archive?
    source_is_file = False
    if hasattr(source, &#039;read&#039;) and hasattr(source, &#039;readline&#039;):
        source_is_file = True
    else:
        source = pathlib.Path(source)
        if source.is_file():
            source_is_file = True

    if source_is_file:
        _copy_archive(source, target, interpreter)
        return

    # We are creating a new archive from a directory.
    if not source.exists():
        raise ZipAppError(&quot;Source does not exist&quot;)
    has_main = (source / &#039;__main__.py&#039;).is_file()
    if main and has_main:
        raise ZipAppError(
            &quot;Cannot specify entry point if the source has __main__.py&quot;)
    if not (main or has_main):
        raise ZipAppError(&quot;Archive has no entry point&quot;)

    main_py = None
    if main:
        # Check that main has the right format.
        mod, sep, fn = main.partition(&#039;:&#039;)
        mod_ok = all(part.isidentifier() for part in mod.split(&#039;.&#039;))
        fn_ok = all(part.isidentifier() for part in fn.split(&#039;.&#039;))
        if not (sep == &#039;:&#039; and mod_ok and fn_ok):
            raise ZipAppError(&quot;Invalid entry point: &quot; + main)
        main_py = MAIN_TEMPLATE.format(module=mod, fn=fn)

    if target is None:
        target = source.with_suffix(&#039;.pyz&#039;)
    elif not hasattr(target, &#039;write&#039;):
        target = pathlib.Path(target)

    with _maybe_open(target, &#039;wb&#039;) as fd:
        _write_file_prefix(fd, interpreter)
        with zipfile.ZipFile(fd, &#039;w&#039;) as z:
            root = pathlib.Path(source)
            for child in root.rglob(&#039;*&#039;):
                arcname = str(child.relative_to(root))
                z.write(str(child), arcname)
            if main_py:
                z.writestr(&#039;__main__.py&#039;, main_py.encode(&#039;utf-8&#039;))

    if interpreter and not hasattr(target, &#039;write&#039;):
        target.chmod(target.stat().st_mode | stat.S_IEXEC)


def get_interpreter(archive):
    with _maybe_open(archive, &#039;rb&#039;) as f:
        if f.read(2) == b&#039;#!&#039;:
            return f.readline().strip().decode(shebang_encoding)


def main(args=None):
    &quot;&quot;&quot;Run the zipapp command line interface.

    The ARGS parameter lets you specify the argument list directly.
    Omitting ARGS (or setting it to None) works as for argparse, using
    sys.argv[1:] as the argument list.
    &quot;&quot;&quot;
    import argparse

    parser = argparse.ArgumentParser()
    parser.add_argument(&#039;--output&#039;, &#039;-o&#039;, default=None,
            help=&quot;The name of the output archive. &quot;
                 &quot;Required if SOURCE is an archive.&quot;)
    parser.add_argument(&#039;--python&#039;, &#039;-p&#039;, default=None,
            help=&quot;The name of the Python interpreter to use &quot;
                 &quot;(default: no shebang line).&quot;)
    parser.add_argument(&#039;--main&#039;, &#039;-m&#039;, default=None,
            help=&quot;The main function of the application &quot;
                 &quot;(default: use an existing __main__.py).&quot;)
    parser.add_argument(&#039;--info&#039;, default=False, action=&#039;store_true&#039;,
            help=&quot;Display the interpreter from the archive.&quot;)
    parser.add_argument(&#039;source&#039;,
            help=&quot;Source directory (or existing archive).&quot;)

    args = parser.parse_args(args)

    # Handle `python -m zipapp archive.pyz --info`.
    if args.info:
        if not os.path.isfile(args.source):
            raise SystemExit(&quot;Can only get info for an archive file&quot;)
        interpreter = get_interpreter(args.source)
        print(&quot;Interpreter: {}&quot;.format(interpreter or &quot;&lt;none&gt;&quot;))
        sys.exit(0)

    if os.path.isfile(args.source):
        if args.output is None or (os.path.exists(args.output) and
                                   os.path.samefile(args.source, args.output)):
            raise SystemExit(&quot;In-place editing of archives is not supported&quot;)
        if args.main:
            raise SystemExit(&quot;Cannot change the main function when copying&quot;)

    create_archive(args.source, args.output,
                   interpreter=args.python, main=args.main)


if __name__ == &#039;__main__&#039;:
    main()
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