installation - How to install PyCrypto for Python 3.9?

Question

My question is: how to install PyCrypto on windows and python 3.9? When I typed pip install pycrypto to the commandline(cmd or powershell) I get an Error.

    ERROR: Command errored out with exit status 1:
     command: 'c:usersMy Usernameappdatalocalprogramspythonpython39python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\Users\My Username\AppData\Local\Temp\pip-install-mg3qxtu2\pycrypto_ffaf716f631d47a5a2b1a2cfaf5a949e\setup.py'"'"'; __file__='"'"'C:\Users\My Username\AppData\Local\Temp\pip-install-mg3qxtu2\pycrypto_ffaf716f631d47a5a2b1a2cfaf5a949e\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'
'"'"', '"'"'
'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:UsersMy UsernameAppDataLocalTemppip-record-7ovjz48dinstall-record.txt' --single-version-externally-managed --compile --install-headers 'c:usersMy Usernameappdatalocalprogramspythonpython39Includepycrypto'
         cwd: C:UsersMy UsernameAppDataLocalTemppip-install-mg3qxtu2pycrypto_ffaf716f631d47a5a2b1a2cfaf5a949e
    Complete output (183 lines):
    running install
    running build
    running build_py
    creating build
    creating buildlib.win-amd64-3.9
    creating buildlib.win-amd64-3.9Crypto
    copying libCryptopct_warnings.py -> buildlib.win-amd64-3.9Crypto
    copying libCrypto\__init__.py -> buildlib.win-amd64-3.9Crypto
    creating buildlib.win-amd64-3.9CryptoHash
    copying libCryptoHashhashalgo.py -> buildlib.win-amd64-3.9CryptoHash
    copying libCryptoHashHMAC.py -> buildlib.win-amd64-3.9CryptoHash
    copying libCryptoHashMD2.py -> buildlib.win-amd64-3.9CryptoHash
    copying libCryptoHashMD4.py -> buildlib.win-amd64-3.9CryptoHash
    copying libCryptoHashMD5.py -> buildlib.win-amd64-3.9CryptoHash
    copying libCryptoHashRIPEMD.py -> buildlib.win-amd64-3.9CryptoHash
    copying libCryptoHashSHA.py -> buildlib.win-amd64-3.9CryptoHash
    copying libCryptoHashSHA224.py -> buildlib.win-amd64-3.9CryptoHash
    copying libCryptoHashSHA256.py -> buildlib.win-amd64-3.9CryptoHash
    copying libCryptoHashSHA384.py -> buildlib.win-amd64-3.9CryptoHash
    copying libCryptoHashSHA512.py -> buildlib.win-amd64-3.9CryptoHash
    copying libCryptoHash\__init__.py -> buildlib.win-amd64-3.9CryptoHash
    creating buildlib.win-amd64-3.9CryptoCipher
    copying libCryptoCipherAES.py -> buildlib.win-amd64-3.9CryptoCipher
    copying libCryptoCipherARC2.py -> buildlib.win-amd64-3.9CryptoCipher
    copying libCryptoCipherARC4.py -> buildlib.win-amd64-3.9CryptoCipher
    copying libCryptoCipherlockalgo.py -> buildlib.win-amd64-3.9CryptoCipher
    copying libCryptoCipherBlowfish.py -> buildlib.win-amd64-3.9CryptoCipher
    copying libCryptoCipherCAST.py -> buildlib.win-amd64-3.9CryptoCipher
    copying libCryptoCipherDES.py -> buildlib.win-amd64-3.9CryptoCipher
    copying libCryptoCipherDES3.py -> buildlib.win-amd64-3.9CryptoCipher
    copying libCryptoCipherPKCS1_OAEP.py -> buildlib.win-amd64-3.9CryptoCipher
    copying libCryptoCipherPKCS1_v1_5.py -> buildlib.win-amd64-3.9CryptoCipher
    copying libCryptoCipherXOR.py -> buildlib.win-amd64-3.9CryptoCipher
    copying libCryptoCipher\__init__.py -> buildlib.win-amd64-3.9CryptoCipher
    creating buildlib.win-amd64-3.9CryptoUtil
    copying libCryptoUtilasn1.py -> buildlib.win-amd64-3.9CryptoUtil
    copying libCryptoUtilCounter.py -> buildlib.win-amd64-3.9CryptoUtil
    copying libCryptoUtil
umber.py -> buildlib.win-amd64-3.9CryptoUtil
    copying libCryptoUtilpy3compat.py -> buildlib.win-amd64-3.9CryptoUtil
    copying libCryptoUtil
andpool.py -> buildlib.win-amd64-3.9CryptoUtil
    copying libCryptoUtilRFC1751.py -> buildlib.win-amd64-3.9CryptoUtil
    copying libCryptoUtilwinrandom.py -> buildlib.win-amd64-3.9CryptoUtil
    copying libCryptoUtil\_number_new.py -> buildlib.win-amd64-3.9CryptoUtil
    copying libCryptoUtil\__init__.py -> buildlib.win-amd64-3.9CryptoUtil
    creating buildlib.win-amd64-3.9CryptoRandom
    copying libCryptoRandom
andom.py -> buildlib.win-amd64-3.9CryptoRandom
    copying libCryptoRandom\_UserFriendlyRNG.py -> buildlib.win-amd64-3.9CryptoRandom
    copying libCryptoRandom\__init__.py -> buildlib.win-amd64-3.9CryptoRandom
    creating buildlib.win-amd64-3.9CryptoRandomFortuna
    copying libCryptoRandomFortunaFortunaAccumulator.py -> buildlib.win-amd64-3.9CryptoRandomFortuna
    copying libCryptoRandomFortunaFortunaGenerator.py -> buildlib.win-amd64-3.9CryptoRandomFortuna
    copying libCryptoRandomFortunaSHAd256.py -> buildlib.win-amd64-3.9CryptoRandomFortuna
    copying libCryptoRandomFortuna\__init__.py -> buildlib.win-amd64-3.9CryptoRandomFortuna
    creating buildlib.win-amd64-3.9CryptoRandomOSRNG
    copying libCryptoRandomOSRNGfallback.py -> buildlib.win-amd64-3.9CryptoRandomOSRNG
    copying libCryptoRandomOSRNG
t.py -> buildlib.win-amd64-3.9CryptoRandomOSRNG
    copying libCryptoRandomOSRNGposix.py -> buildlib.win-amd64-3.9CryptoRandomOSRNG
    copying libCryptoRandomOSRNG
ng_base.py -> buildlib.win-amd64-3.9CryptoRandomOSRNG
    copying libCryptoRandomOSRNG\__init__.py -> buildlib.win-amd64-3.9CryptoRandomOSRNG
    creating buildlib.win-amd64-3.9CryptoSelfTest
    copying libCryptoSelfTestst_common.py -> buildlib.win-amd64-3.9CryptoSelfTest
    copying libCryptoSelfTest\__init__.py -> buildlib.win-amd64-3.9CryptoSelfTest
    creating buildlib.win-amd64-3.9CryptoSelfTestCipher
    copying libCryptoSelfTestCiphercommon.py -> buildlib.win-amd64-3.9CryptoSelfTestCipher
    copying libCryptoSelfTestCipherest_AES.py -> buildlib.win-amd64-3.9CryptoSelfTestCipher
    copying libCryptoSelfTestCipherest_ARC2.py -> buildlib.win-amd64-3.9CryptoSelfTestCipher
    copying libCryptoSelfTestCipherest_ARC4.py -> buildlib.win-amd64-3.9CryptoSelfTestCipher
    copying libCryptoSelfTestCipherest_Blowfish.py -> buildlib.win-amd64-3.9CryptoSelfTestCipher
    copying libCryptoSelfTestCipherest_CAST.py -> buildlib.win-amd64-3.9CryptoSelfTestCipher
    copying libCryptoSelfTestCipherest_DES.py -> buildlib.win-amd64-3.9CryptoSelfTestCipher
    copying libCryptoSelfTestCipherest_DES3.py -> buildlib.win-amd64-3.9CryptoSelfTestCipher
    copying libCryptoSelfTestCipherest_pkcs1_15.py -> buildlib.win-amd64-3.9CryptoSelfTestCipher
    copying libCryptoSelfTestCipherest_pkcs1_oaep.py -> buildlib.win-amd64-3.9CryptoSelfTestCipher
    copying libCryptoSelfTestCipherest_XOR.py -> buildlib.win-amd64-3.9CryptoSelfTestCipher
    copying libCryptoSelfTestCipher\__init__.py -> buildlib.win-amd64-3.9CryptoSelfTestCipher
    creating buildlib.win-amd64-3.9CryptoSelfTestHash
    copying libCryptoSelfTestHashcommon.py -> buildlib.win-amd64-3.9CryptoSelfTestHash
    copying libCryptoSelfTestHashest_HMAC.py -> buildlib.win-amd64-3.9CryptoSelfTestHash
    copying libCryptoSelfTestHashest_MD2.py -> buildlib.win-amd64-3.9CryptoSelfTestHash
    copying libCryptoSelfTestHashest_MD4.py -> buildlib.win-amd64-3.9CryptoSelfTestHash
    copying libCryptoSelfTestHashest_MD5.py -> buildlib.win-amd64-3.9CryptoSelfTestHash
    copying libCryptoSelfTestHashest_RIPEMD.py -> buildlib.win-amd64-3.9CryptoSelfTestHash
    copying libCryptoSelfTestHashest_SHA.py -> buildlib.win-amd64-3.9CryptoSelfTestHash
    copying libCryptoSelfTestHashest_SHA224.py -> buildlib.win-amd64-3.9CryptoSelfTestHash
    copying libCryptoSelfTestHashest_SHA256.py -> buildlib.win-amd64-3.9CryptoSelfTestHash
    copying libCryptoSelfTestHashest_SHA384.py -> buildlib.win-amd64-3.9CryptoSelfTestHash
    copying libCryptoSelfTestHashest_SHA512.py -> buildlib.win-amd64-3.9CryptoSelfTestHash
    copying libCryptoSelfTestHash\__init__.py -> buildlib.win-amd64-3.9CryptoSelfTestHash
    creating buildlib.win-amd64-3.9CryptoSelfTestProtocol
    copying libCryptoSelfTestProtocolest_AllOrNothing.py -> buildlib.win-amd64-3.9CryptoSelfTestProtocol
    copying libCryptoSelfTestProtocolest_chaffing.py -> buildlib.win-amd64-3.9CryptoSelfTestProtocol
    copying libCryptoSelfTestProtocolest_KDF.py -> buildlib.win-amd64-3.9CryptoSelfTestProtocol
    copying libCryptoSelfTestProtocolest_rfc1751.py -> buildlib.win-amd64-3.9CryptoSelfTestProtocol
    copying libCryptoSelfTestProtocol\__init__.py -> buildlib.win-amd64-3.9CryptoSelfTestProtocol
    creating buildlib.win-amd64-3.9CryptoSelfTestPublicKey
    copying libCryptoSelfTestPublicKeyest_DSA.py -> buildlib.win-amd64-3.9CryptoSelfTestPublicKey
    copying libCryptoSelfTestPublicKeyest_ElGamal.py -> buildlib.win-amd64-3.9CryptoSelfTestPublicKey
    copying libCryptoSelfTestPublicKeyest_importKey.py -> buildlib.win-amd64-3.9CryptoSelfTestPublicKey
    copying libCryptoSelfTestPublicKeyest_RSA.py -> buildlib.win-amd64-3.9CryptoSelfTestPublicKey
    copying libCryptoSelfTestPublicKey\__init__.py -> buildlib.win-amd64-3.9CryptoSelfTestPublicKey
    creating buildlib.win-amd64-3.9CryptoSelfTestRandom
    copying libCryptoSelfTestRandomest_random.py -> buildlib.win-amd64-3.9CryptoSelfTestRandom
    copying libCryptoSelfTestRandomest_rpoolcompat.py -> buildlib.win-amd64-3.9CryptoSelfTestRandom
    copying libCryptoSelfTestRandomest__UserFriendlyRNG.py -> buildlib.win-amd64-3.9CryptoSelfTestRandom
    copying libCryptoSelfTestRandom\__init__.py -> buildlib.win-amd64-3.9CryptoSelfTestRandom
    creating buildlib.win-amd64-3.9CryptoSelfTestRandomFortuna
    copying libCryptoSelfTestRandomFortunaest_FortunaAccumulator.py -> buildlib.win-amd64-3.9CryptoSelfTestRandomFortuna
    copying libCryptoSelfTestRandomFortunaest_FortunaGenerator.py -> buildlib.win-amd64-3.9CryptoSelfTestRandomFortuna
    copying libCryptoSelfTestRandomFortunaest_SHAd256.py -> buildlib.win-amd64-3.9CryptoSelfTestRandomFortuna
    copying libCryptoSelfTestRandomFortuna\__init__.py -> buildlib.win-amd64-3.9CryptoSelfTestRandomFortuna
    creating buildlib.win-amd64-3.9CryptoSelfTestRandomOSRNG
    copying libCryptoSelfTestRandomOSRNGest_fallback.py -> buildlib.win-amd64-3.9CryptoSelfTestRandomOSRNG
    copying libCryptoSelfTestRandomOSRNGest_generic.py -> buildlib.win-amd64-3.9CryptoSelfTestRandomOSRNG
    copying libCryptoSelfTestRandomOSRNGest_nt.py -> buildlib.win-amd64-3.9CryptoSelfTestRandomOSRNG
    copying libCryptoSelfTestRandomOSRNGest_posix.py -> buildlib.win-amd64-3.9CryptoSelfTestRandomOSRNG
    copying libCryptoSelfTestRandomOSRNGest_winrandom.py -> buildlib.win-amd64-3.9CryptoSelfTestRandomOSRNG
    copying libCryptoSelfTestRandomOSRNG\__init__.py -> buildlib.win-amd64-3.9CryptoSelfTestRandomOSRNG
    creating buildlib.win-amd64-3.9CryptoSelfTestUtil
    copying libCryptoSelfTestUtilest_asn1.py -> buildlib.win-amd64-3.9CryptoSelfTestUtil
    copying libCryptoSelfTestUtilest_Counter.py -> buildlib.win-amd64-3.9CryptoSelfTestUtil
    copying libCryptoSelfTestUtilest_number.py -> buildlib.win-amd64-3.9CryptoSelfTestUtil
    copying libCryptoSelfTestUtilest_winrandom.py -> buildlib.win-amd64-3.9CryptoSelfTestUtil
    copying libCryptoSelfTestUtil\__init__.py -> buildlib.win-amd64-3.9CryptoSelfTestUtil
    creating buildlib.win-amd64-3.9CryptoSelfTestSignature
    copying libCryptoSelfTestSignatureest_pkcs1_15.py -> buildlib.win-amd64-3.9CryptoSelfTestSignature
    copying libCryptoSelfTestSignatureest_pkcs1_pss.py -> buildlib.win-amd64-3.9CryptoSelfTestSignature
    copying libCryptoSelfTestSignature\__init__.py -> buildlib.win-amd64-3.9CryptoSelfTestSignature
    

Answer 1

You would need the Visual Studio 2019 build tools to ensure you've got necessary libraries configured: https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=BuildTools&rel=16