Handling ImportError Exception

suggest change

When you use python file as module there is no need always check if package is installed but it is still useful for scripts.

if __name__ == '__main__':
    try:
        import requests
    except ImportError:
        print("To use this module you need 'requests' module")
        t = input('Install requests? y/n: ')
        if t == 'y':
            import pip
            pip.main(['install', 'requests'])
            import requests
            import os
            import sys
            pass
        else:
            import os
            import sys
            print('Some functionality can be unavailable.')
else:
    import requests
    import os
    import sys

Found a mistake? Have a question or improvement idea? Let me know.

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