I ran command prompt as administrator then typed pip install pycrypto and got this error message:
Command ""c:\program files (x86)\python37-32\python.exe" -u -c "import setuptools, tokenize;file='C:\Users\Berkay\AppData\Local\Temp\pip-install-yikt7auh\pycrypto\setup.py';f=getattr(tokenize, 'open', open)(file);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, file, 'exec'))" install --record C:\Users\Berkay\AppData\Local\Temp\pip-record-rjhqqr19\install-record.txt --single-version-externally-managed --compile" failed with error code 1 in C:\Users\Berkay\AppData\Local\Temp\pip-install-yikt7auh\pycrypto\