wheel.py 文件源码

def fix_script(path):
    """Replace #!python with #!/path/to/python
    Return True if file was changed."""
    # XXX RECORD hashes will need to be updated
    if os.path.isfile(path):
        script = open(path, 'rb')
        try:
            firstline = script.readline()
            if not firstline.startswith(binary('#!python')):
                return False
            exename = sys.executable.encode(sys.getfilesystemencoding())
            firstline = binary('#!') + exename + binary(os.linesep)
            rest = script.read()
        finally:
            script.close()
        script = open(path, 'wb')
        try:
            script.write(firstline)
            script.write(rest)
        finally:
            script.close()
        return True