Pycharm 报错 AttributeError: module 'pip' has no attribute 'main'

1.打开文件packaging_tool.py：

　　D:\Program files\pycharm\PyCharm 2016.3.2\helpers\packaging_tool.py

2.添加导入：

　　import pip._internal as pip_new 

3.修改参数

　　修改前的代码为：　　

def do_install(pkgs):
    try:
        import pip
    except ImportError:
        error_no_pip()
    return pip.main(['install'] + pkgs)


def do_uninstall(pkgs):
    try:
        import pip
    except ImportError:
        error_no_pip()
    return pip.main(['uninstall', '-y'] + pkgs)

　　修改后的代码：

def do_install(pkgs):
    try:
        import pip
    except ImportError:
        error_no_pip()
    return pip_new.main(['install'] + pkgs)


def do_uninstall(pkgs):
    try:
        import pip
    except ImportError:
        error_no_pip()
    return pip_new.main(['uninstall', '-y'] + pkgs)