解决AttributeError: 'module' object has no attribute 'main' 安装第三方包报错

1.找到pycharm 目录下的 \helper\packaging_tool.py 文件

2.用新版pycharm 的packaging_tool.py 替换 旧版 同名文件

文件代码如下：

import sys
import traceback
import getopt
import os

ERROR_WRONG_USAGE = 1
ERROR_NO_PIP = 2
ERROR_NO_SETUPTOOLS = 3
ERROR_EXCEPTION = 4

os.putenv( "PIP_REQUIRE_VIRTUALENV" , "false" )

def exit(retcode):
    major, minor, micro, release, serial = sys.version_info
    version = major * 10 + minor
    if version < 25 :
        import os
        os._exit(retcode)
    else :
        sys.exit(retcode)


def usage():
    sys.stderr.write( 'Usage: packaging_tool.py \n' )
    sys.stderr.flush()
    exit(ERROR_WRONG_USAGE)


def error(message, retcode):
    sys.stderr.write( 'Error: %s\n' % message)
    sys.stderr.flush()
    exit(retcode)


def error_no_pip():
    type , value, tb = sys.exc_info()
    if tb is not None and tb.tb_next is None :
        error( "Python packaging tool 'pip' not found" , ERROR_NO_PIP)
    else :
        error(traceback.format_exc(), ERROR_EXCEPTION)


def do_list():
    try :
        import pkg_resources
    except ImportError:
        error( "Python packaging tool 'setuptools' not found" , ERROR_NO_SETUPTOOLS)
    for pkg in pkg_resources.working_set:
        try :
            requirements = pkg.requires()
        except Exception:
            requirements = []
        requires = ':' .join([ str (x) for x in requirements])
        sys.stdout.write( '\t' .join([pkg.project_name, pkg.version, pkg.location, requires]) + chr ( 10 ))
    sys.stdout.flush()


def do_install(pkgs):
    return pip_main([ 'install' ] + pkgs)


def do_uninstall(pkgs):
    return pip_main([ 'uninstall' , '-y' ] + pkgs)


def pip_main(args):
    try :
        import pip
    except ImportError:
        error_no_pip()

    try :
        func = pip.main
    except AttributeError:
        from pip._internal import main as func

    func(args)


def do_pyvenv(path, system_site_packages):
    try :
        import venv
    except ImportError:
        error( "Standard Python 'venv' module not found" , ERROR_EXCEPTION)
    # In Python >= 3.4 venv.create() has a new parameter with_pip=False
    # that allows to automatically install setuptools and pip with the module
    # ensurepip. Unfortunately, we cannot use this parameter and have to
    # bootstrap these packages ourselves, since some distributions of CPython
    # on Ubuntu don't include ensurepip.
    venv.create(path, system_site_packages = system_site_packages)


def do_untar(name):
    import tempfile

    directory_name = tempfile.mkdtemp( "pycharm-management" )

    import tarfile

    tar = tarfile. open (name)
    for item in tar:
        tar.extract(item, directory_name)

    sys.stdout.write(directory_name + chr ( 10 ))
    sys.stdout.flush()
    return 0


def mkdtemp_ifneeded():
    try :
        ind = sys.argv.index( '--build-dir' )
        if not os.path.exists(sys.argv[ind + 1 ]):
            import tempfile

            sys.argv[ind + 1 ] = tempfile.mkdtemp( 'pycharm-packaging' )
            return sys.argv[ind + 1 ]
    except :
        pass

    return None


def main():
    try :
        # As a workaround for #885 in setuptools, don't expose other helpers
        # in sys.path so as not no confuse it with possible combination of
        # namespace/ordinary packages
        sys.path.remove(os.path.dirname(__file__))
    except ValueError:
        pass

    retcode = 0
    try :
        if len (sys.argv) < 2 :
            usage()
        cmd = sys.argv[ 1 ]
        if cmd = = 'list' :
            if len (sys.argv) ! = 2 :
                usage()
            do_list()
        elif cmd = = 'install' :
            if len (sys.argv) < 2 :
                usage()

            rmdir = mkdtemp_ifneeded()

            pkgs = sys.argv[ 2 :]
            retcode = do_install(pkgs)

            if rmdir is not None :
                import shutil
                shutil.rmtree(rmdir)


        elif cmd = = 'untar' :
            if len (sys.argv) < 2 :
                usage()
            name = sys.argv[ 2 ]
            retcode = do_untar(name)
        elif cmd = = 'uninstall' :
            if len (sys.argv) < 2 :
                usage()
            pkgs = sys.argv[ 2 :]
            retcode = do_uninstall(pkgs)
        elif cmd = = 'pyvenv' :
            opts, args = getopt.getopt(sys.argv[ 2 :], ' ', [' system - site - packages'])
            if len (args) ! = 1 :
                usage()
            path = args[ 0 ]
            system_site_packages = False
            for opt, arg in opts:
                if opt = = '--system-site-packages' :
                    system_site_packages = True
            do_pyvenv(path, system_site_packages)
        else :
            usage()
    except Exception:
        traceback.print_exc()
        exit(ERROR_EXCEPTION)
    exit(retcode)

if __name__ = = '__main__' :
    main()

替换掉代码即可

转载于:https://www.cnblogs.com/wujf-myblog/p/9620315.html