Python Pip 错误：需要 Microsoft Visual C++ 14.0

Pip error: Microsoft Visual C++ 14.0 is required

提问by Studentu

I just ran the following command:

我刚刚运行了以下命令：

pip install -U steem

and the installation worked well until it failed to install pycrypto. Afterwards I did the

并且安装运行良好，直到安装失败pycrypto。后来我做了

pip install cryptography

command because I thought it was the missing package. So my question is, how I can install steemwithout the pycrypto-error (or the pycrypto-package in addition) and how to uninstall the cryptography-Package which I don't need. (I'm using Windows 7 and Python 3)

命令，因为我认为这是丢失的包。所以我的问题是，如何在steem没有 pycrypto-error（或另外的 pycrypto-package）的情况下进行安装，以及如何卸载我不需要的 cryptography-Package。（我使用的是 Windows 7 和 Python 3）

Requirement already up-to-date: python-dateutil in c:\users\***\appdata\lo
cal\programs\python\python36\lib\site-packages (from dateparser->maya->steem)
Collecting regex (from dateparser->maya->steem)
Downloading regex-2017.06.23-cp36-none-win_amd64.whl (245kB)
100% |████████████████████████████████| 245kB 499kB/s
Collecting pytzdata (from pendulum->maya->steem)
Downloading pytzdata-2017.2-py2.py3-none-any.whl (462kB)
100% |████████████████████████████████| 471kB 965kB/s
Installing collected packages: urllib3, idna, chardet, certifi, requests, pycryp
to, funcy, w3lib, voluptuous, diff-match-patch, scrypt, prettytable, appdirs, la
ngdetect, ruamel.yaml, humanize, tzlocal, regex, dateparser, pytzdata, pendulum,
maya, ecdsa, pylibscrypt, ujson, toolz, steem
Running setup.py install for pycrypto ... error
Complete output from command c:\users\***\appdata\local\programs\pytho
n\python36\python.exe -u -c "import setuptools, tokenize;__file__='C:\Users\
***~1\AppData\Local\Temp\pip-build-k6flhu5k\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\***N~1\AppDat
a\Local\Temp\pip-igpkll6u-record\install-record.txt --single-version-externally-
managed --compile:
running install
running build
running build_py
creating build
creating build\lib.win-amd64-3.6
creating build\lib.win-amd64-3.6\Crypto
copying lib\Crypto\pct_warnings.py -> build\lib.win-amd64-3.6\Crypto
copying lib\Crypto\__init__.py -> build\lib.win-amd64-3.6\Crypto
creating build\lib.win-amd64-3.6\Crypto\Hash
copying lib\Crypto\Hash\hashalgo.py -> build\lib.win-amd64-3.6\Crypto\Hash
copying lib\Crypto\Hash\HMAC.py -> build\lib.win-amd64-3.6\Crypto\Hash
copying lib\Crypto\Hash\MD2.py -> build\lib.win-amd64-3.6\Crypto\Hash
copying lib\Crypto\Hash\MD4.py -> build\lib.win-amd64-3.6\Crypto\Hash
copying lib\Crypto\Hash\MD5.py -> build\lib.win-amd64-3.6\Crypto\Hash
copying lib\Crypto\Hash\RIPEMD.py -> build\lib.win-amd64-3.6\Crypto\Hash
copying lib\Crypto\Hash\SHA.py -> build\lib.win-amd64-3.6\Crypto\Hash
copying lib\Crypto\Hash\SHA224.py -> build\lib.win-amd64-3.6\Crypto\Hash
copying lib\Crypto\Hash\SHA256.py -> build\lib.win-amd64-3.6\Crypto\Hash
copying lib\Crypto\Hash\SHA384.py -> build\lib.win-amd64-3.6\Crypto\Hash
copying lib\Crypto\Hash\SHA512.py -> build\lib.win-amd64-3.6\Crypto\Hash
copying lib\Crypto\Hash\__init__.py -> build\lib.win-amd64-3.6\Crypto\Hash
creating build\lib.win-amd64-3.6\Crypto\Cipher
copying lib\Crypto\Cipher\AES.py -> build\lib.win-amd64-3.6\Crypto\Cipher
copying lib\Crypto\Cipher\ARC2.py -> build\lib.win-amd64-3.6\Crypto\Cipher
copying lib\Crypto\Cipher\ARC4.py -> build\lib.win-amd64-3.6\Crypto\Cipher
copying lib\Crypto\Cipher\blockalgo.py -> build\lib.win-amd64-3.6\Crypto\Cip
her
copying lib\Crypto\Cipher\Blowfish.py -> build\lib.win-amd64-3.6\Crypto\Ciph
er
copying lib\Crypto\Cipher\CAST.py -> build\lib.win-amd64-3.6\Crypto\Cipher
copying lib\Crypto\Cipher\DES.py -> build\lib.win-amd64-3.6\Crypto\Cipher
copying lib\Crypto\Cipher\DES3.py -> build\lib.win-amd64-3.6\Crypto\Cipher
copying lib\Crypto\Cipher\PKCS1_OAEP.py -> build\lib.win-amd64-3.6\Crypto\Ci
pher
copying lib\Crypto\Cipher\PKCS1_v1_5.py -> build\lib.win-amd64-3.6\Crypto\Ci
pher
copying lib\Crypto\Cipher\XOR.py -> build\lib.win-amd64-3.6\Crypto\Cipher
copying lib\Crypto\Cipher\__init__.py -> build\lib.win-amd64-3.6\Crypto\Ciph
er
creating build\lib.win-amd64-3.6\Crypto\Util
copying lib\Crypto\Util\asn1.py -> build\lib.win-amd64-3.6\Crypto\Util
copying lib\Crypto\Util\Counter.py -> build\lib.win-amd64-3.6\Crypto\Util
copying lib\Crypto\Util\number.py -> build\lib.win-amd64-3.6\Crypto\Util
copying lib\Crypto\Util\py3compat.py -> build\lib.win-amd64-3.6\Crypto\Util
copying lib\Crypto\Util\randpool.py -> build\lib.win-amd64-3.6\Crypto\Util
copying lib\Crypto\Util\RFC1751.py -> build\lib.win-amd64-3.6\Crypto\Util
copying lib\Crypto\Util\winrandom.py -> build\lib.win-amd64-3.6\Crypto\Util
copying lib\Crypto\Util\_number_new.py -> build\lib.win-amd64-3.6\Crypto\Uti
l
copying lib\Crypto\Util\__init__.py -> build\lib.win-amd64-3.6\Crypto\Util
creating build\lib.win-amd64-3.6\Crypto\Random
copying lib\Crypto\Random\random.py -> build\lib.win-amd64-3.6\Crypto\Random

copying lib\Crypto\Random\_UserFriendlyRNG.py -> build\lib.win-amd64-3.6\Cry
pto\Random
copying lib\Crypto\Random\__init__.py -> build\lib.win-amd64-3.6\Crypto\Rand
om
creating build\lib.win-amd64-3.6\Crypto\Random\Fortuna
copying lib\Crypto\Random\Fortuna\FortunaAccumulator.py -> build\lib.win-amd
64-3.6\Crypto\Random\Fortuna
copying lib\Crypto\Random\Fortuna\FortunaGenerator.py -> build\lib.win-amd64
-3.6\Crypto\Random\Fortuna
copying lib\Crypto\Random\Fortuna\SHAd256.py -> build\lib.win-amd64-3.6\Cryp
to\Random\Fortuna
copying lib\Crypto\Random\Fortuna\__init__.py -> build\lib.win-amd64-3.6\Cry
pto\Random\Fortuna
creating build\lib.win-amd64-3.6\Crypto\Random\OSRNG
copying lib\Crypto\Random\OSRNG\fallback.py -> build\lib.win-amd64-3.6\Crypt
o\Random\OSRNG
copying lib\Crypto\Random\OSRNG\nt.py -> build\lib.win-amd64-3.6\Crypto\Rand
om\OSRNG
copying lib\Crypto\Random\OSRNG\posix.py -> build\lib.win-amd64-3.6\Crypto\R
andom\OSRNG
copying lib\Crypto\Random\OSRNG\rng_base.py -> build\lib.win-amd64-3.6\Crypt
o\Random\OSRNG
copying lib\Crypto\Random\OSRNG\__init__.py -> build\lib.win-amd64-3.6\Crypt
o\Random\OSRNG
creating build\lib.win-amd64-3.6\Crypto\SelfTest
copying lib\Crypto\SelfTest\st_common.py -> build\lib.win-amd64-3.6\Crypto\S
elfTest
copying lib\Crypto\SelfTest\__init__.py -> build\lib.win-amd64-3.6\Crypto\Se
lfTest
creating build\lib.win-amd64-3.6\Crypto\SelfTest\Cipher
copying lib\Crypto\SelfTest\Cipher\common.py -> build\lib.win-amd64-3.6\Cryp
to\SelfTest\Cipher
copying lib\Crypto\SelfTest\Cipher\test_AES.py -> build\lib.win-amd64-3.6\Cr
ypto\SelfTest\Cipher
copying lib\Crypto\SelfTest\Cipher\test_ARC2.py -> build\lib.win-amd64-3.6\C
rypto\SelfTest\Cipher
copying lib\Crypto\SelfTest\Cipher\test_ARC4.py -> build\lib.win-amd64-3.6\C
rypto\SelfTest\Cipher
copying lib\Crypto\SelfTest\Cipher\test_Blowfish.py -> build\lib.win-amd64-3
.6\Crypto\SelfTest\Cipher
copying lib\Crypto\SelfTest\Cipher\test_CAST.py -> build\lib.win-amd64-3.6\C
rypto\SelfTest\Cipher
copying lib\Crypto\SelfTest\Cipher\test_DES.py -> build\lib.win-amd64-3.6\Cr
ypto\SelfTest\Cipher
copying lib\Crypto\SelfTest\Cipher\test_DES3.py -> build\lib.win-amd64-3.6\C
rypto\SelfTest\Cipher
copying lib\Crypto\SelfTest\Cipher\test_pkcs1_15.py -> build\lib.win-amd64-3
.6\Crypto\SelfTest\Cipher
copying lib\Crypto\SelfTest\Cipher\test_pkcs1_oaep.py -> build\lib.win-amd64
-3.6\Crypto\SelfTest\Cipher
copying lib\Crypto\SelfTest\Cipher\test_XOR.py -> build\lib.win-amd64-3.6\Cr
ypto\SelfTest\Cipher
copying lib\Crypto\SelfTest\Cipher\__init__.py -> build\lib.win-amd64-3.6\Cr
ypto\SelfTest\Cipher
creating build\lib.win-amd64-3.6\Crypto\SelfTest\Hash
copying lib\Crypto\SelfTest\Hash\common.py -> build\lib.win-amd64-3.6\Crypto
\SelfTest\Hash
copying lib\Crypto\SelfTest\Hash\test_HMAC.py -> build\lib.win-amd64-3.6\Cry
pto\SelfTest\Hash
copying lib\Crypto\SelfTest\Hash\test_MD2.py -> build\lib.win-amd64-3.6\Cryp
to\SelfTest\Hash
copying lib\Crypto\SelfTest\Hash\test_MD4.py -> build\lib.win-amd64-3.6\Cryp
to\SelfTest\Hash
copying lib\Crypto\SelfTest\Hash\test_MD5.py -> build\lib.win-amd64-3.6\Cryp
to\SelfTest\Hash
copying lib\Crypto\SelfTest\Hash\test_RIPEMD.py -> build\lib.win-amd64-3.6\C
rypto\SelfTest\Hash
copying lib\Crypto\SelfTest\Hash\test_SHA.py -> build\lib.win-amd64-3.6\Cryp
to\SelfTest\Hash
copying lib\Crypto\SelfTest\Hash\test_SHA224.py -> build\lib.win-amd64-3.6\C
rypto\SelfTest\Hash
copying lib\Crypto\SelfTest\Hash\test_SHA256.py -> build\lib.win-amd64-3.6\C
rypto\SelfTest\Hash
copying lib\Crypto\SelfTest\Hash\test_SHA384.py -> build\lib.win-amd64-3.6\C
rypto\SelfTest\Hash
copying lib\Crypto\SelfTest\Hash\test_SHA512.py -> build\lib.win-amd64-3.6\C
rypto\SelfTest\Hash
copying lib\Crypto\SelfTest\Hash\__init__.py -> build\lib.win-amd64-3.6\Cryp
to\SelfTest\Hash
creating build\lib.win-amd64-3.6\Crypto\SelfTest\Protocol
copying lib\Crypto\SelfTest\Protocol\test_AllOrNothing.py -> build\lib.win-a
md64-3.6\Crypto\SelfTest\Protocol
copying lib\Crypto\SelfTest\Protocol\test_chaffing.py -> build\lib.win-amd64
-3.6\Crypto\SelfTest\Protocol
copying lib\Crypto\SelfTest\Protocol\test_KDF.py -> build\lib.win-amd64-3.6\
Crypto\SelfTest\Protocol
copying lib\Crypto\SelfTest\Protocol\test_rfc1751.py -> build\lib.win-amd64-
3.6\Crypto\SelfTest\Protocol
copying lib\Crypto\SelfTest\Protocol\__init__.py -> build\lib.win-amd64-3.6\
Crypto\SelfTest\Protocol
creating build\lib.win-amd64-3.6\Crypto\SelfTest\PublicKey
copying lib\Crypto\SelfTest\PublicKey\test_DSA.py -> build\lib.win-amd64-3.6
\Crypto\SelfTest\PublicKey
copying lib\Crypto\SelfTest\PublicKey\test_ElGamal.py -> build\lib.win-amd64
-3.6\Crypto\SelfTest\PublicKey
copying lib\Crypto\SelfTest\PublicKey\test_importKey.py -> build\lib.win-amd
64-3.6\Crypto\SelfTest\PublicKey
copying lib\Crypto\SelfTest\PublicKey\test_RSA.py -> build\lib.win-amd64-3.6
\Crypto\SelfTest\PublicKey
copying lib\Crypto\SelfTest\PublicKey\__init__.py -> build\lib.win-amd64-3.6
\Crypto\SelfTest\PublicKey
creating build\lib.win-amd64-3.6\Crypto\SelfTest\Random
copying lib\Crypto\SelfTest\Random\test_random.py -> build\lib.win-amd64-3.6
\Crypto\SelfTest\Random
copying lib\Crypto\SelfTest\Random\test_rpoolcompat.py -> build\lib.win-amd6
4-3.6\Crypto\SelfTest\Random
copying lib\Crypto\SelfTest\Random\test__UserFriendlyRNG.py -> build\lib.win
-amd64-3.6\Crypto\SelfTest\Random
copying lib\Crypto\SelfTest\Random\__init__.py -> build\lib.win-amd64-3.6\Cr
ypto\SelfTest\Random
creating build\lib.win-amd64-3.6\Crypto\SelfTest\Random\Fortuna
copying lib\Crypto\SelfTest\Random\Fortuna\test_FortunaAccumulator.py -> bui
ld\lib.win-amd64-3.6\Crypto\SelfTest\Random\Fortuna
copying lib\Crypto\SelfTest\Random\Fortuna\test_FortunaGenerator.py -> build
\lib.win-amd64-3.6\Crypto\SelfTest\Random\Fortuna
copying lib\Crypto\SelfTest\Random\Fortuna\test_SHAd256.py -> build\lib.win-
amd64-3.6\Crypto\SelfTest\Random\Fortuna
copying lib\Crypto\SelfTest\Random\Fortuna\__init__.py -> build\lib.win-amd6
4-3.6\Crypto\SelfTest\Random\Fortuna
creating build\lib.win-amd64-3.6\Crypto\SelfTest\Random\OSRNG
copying lib\Crypto\SelfTest\Random\OSRNG\test_fallback.py -> build\lib.win-a
md  64-3.6\Crypto\SelfTest\Random\OSRNG
copying lib\Crypto\SelfTest\Random\OSRNG\test_generic.py -> build\lib.win-am
d64-3.6\Crypto\SelfTest\Random\OSRNG
copying lib\Crypto\SelfTest\Random\OSRNG\test_nt.py -> build\lib.win-amd64-3
.6\Crypto\SelfTest\Random\OSRNG
copying lib\Crypto\SelfTest\Random\OSRNG\test_posix.py -> build\lib.win-amd6
4-3.6\Crypto\SelfTest\Random\OSRNG
copying lib\Crypto\SelfTest\Random\OSRNG\test_winrandom.py -> build\lib.win-
amd64-3.6\Crypto\SelfTest\Random\OSRNG
copying lib\Crypto\SelfTest\Random\OSRNG\__init__.py -> build\lib.win-amd64-
3.6\Crypto\SelfTest\Random\OSRNG
creating build\lib.win-amd64-3.6\Crypto\SelfTest\Util
copying lib\Crypto\SelfTest\Util\test_asn1.py -> build\lib.win-amd64-3.6\Cry
pto\SelfTest\Util
copying lib\Crypto\SelfTest\Util\test_Counter.py -> build\lib.win-amd64-3.6\
Crypto\SelfTest\Util
copying lib\Crypto\SelfTest\Util\test_number.py -> build\lib.win-amd64-3.6\C
rypto\SelfTest\Util
copying lib\Crypto\SelfTest\Util\test_winrandom.py -> build\lib.win-amd64-3.
6\Crypto\SelfTest\Util
copying lib\Crypto\SelfTest\Util\__init__.py -> build\lib.win-amd64-3.6\Cryp
to\SelfTest\Util
creating build\lib.win-amd64-3.6\Crypto\SelfTest\Signature
copying lib\Crypto\SelfTest\Signature\test_pkcs1_15.py -> build\lib.win-amd6
4-3.6\Crypto\SelfTest\Signature
copying lib\Crypto\SelfTest\Signature\test_pkcs1_pss.py -> build\lib.win-amd
64-3.6\Crypto\SelfTest\Signature
copying lib\Crypto\SelfTest\Signature\__init__.py -> build\lib.win-amd64-3.6
\Crypto\SelfTest\Signature
creating build\lib.win-amd64-3.6\Crypto\Protocol
copying lib\Crypto\Protocol\AllOrNothing.py -> build\lib.win-amd64-3.6\Crypt
o\Protocol
copying lib\Crypto\Protocol\Chaffing.py -> build\lib.win-amd64-3.6\Crypto\Pr
otocol
copying lib\Crypto\Protocol\KDF.py -> build\lib.win-amd64-3.6\Crypto\Protoco
l
copying lib\Crypto\Protocol\__init__.py -> build\lib.win-amd64-3.6\Crypto\Pr
otocol
creating build\lib.win-amd64-3.6\Crypto\PublicKey
copying lib\Crypto\PublicKey\DSA.py -> build\lib.win-amd64-3.6\Crypto\Public
Key
copying lib\Crypto\PublicKey\ElGamal.py -> build\lib.win-amd64-3.6\Crypto\Pu
blicKey
copying lib\Crypto\PublicKey\pubkey.py -> build\lib.win-amd64-3.6\Crypto\Pub
licKey
copying lib\Crypto\PublicKey\RSA.py -> build\lib.win-amd64-3.6\Crypto\Public
Key
copying lib\Crypto\PublicKey\_DSA.py -> build\lib.win-amd64-3.6\Crypto\Publi
cKey
copying lib\Crypto\PublicKey\_RSA.py -> build\lib.win-amd64-3.6\Crypto\Publi
cKey
copying lib\Crypto\PublicKey\_slowmath.py -> build\lib.win-amd64-3.6\Crypto\
PublicKey
copying lib\Crypto\PublicKey\__init__.py -> build\lib.win-amd64-3.6\Crypto\P
ublicKey
creating build\lib.win-amd64-3.6\Crypto\Signature
copying lib\Crypto\Signature\PKCS1_PSS.py -> build\lib.win-amd64-3.6\Crypto\
Signature
copying lib\Crypto\Signature\PKCS1_v1_5.py -> build\lib.win-amd64-3.6\Crypto
\Signature
copying lib\Crypto\Signature\__init__.py -> build\lib.win-amd64-3.6\Crypto\S
ignature
Skipping optional fixer: buffer
Skipping optional fixer: idioms
Skipping optional fixer: set_literal
Skipping optional fixer: ws_comma
running build_ext
warning: GMP or MPIR library not found; Not building Crypto.PublicKey._fastm
ath.
building 'Crypto.Random.OSRNG.winrandom' extension
error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual
C++ Build Tools": http://landinghub.visualstudio.com/visual-cpp-build-tools

----------------------------------------
Command "c:\users\***\appdata\local\programs\python\python36\python.exe -u
-c "import setuptools, tokenize;__file__='C:\Users\***N~1\AppData\Local\
Temp\pip-build-k6flhu5k\pycrypto\setup.py';f=getattr(tokenize, 'open', open)(
__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code,   __fil
e__, 'exec'))" install --record C:\Users\***N~1\AppData\Local\Temp\pip-igpkll6
u-record\install-record.txt --single-version-externally-managed --compile"   faile
d with error code 1 in C:\Users\***N~1\AppData\Local\Temp\pip-build-    k6flhu5k\p
ycrypto\

C:\Users\***>pip install cryptography
Collecting cryptography
Downloading cryptography-1.9-cp36-cp36m-win_amd64.whl (1.3MB)
100% |████████████████████████████████| 1.3MB 581kB/s
Requirement already satisfied: six>=1.4.1 in c:\users\***\appdata\local\pr
ograms\python\python36\lib\site-packages (from cryptography)
Collecting cffi>=1.7 (from cryptography)
Downloading cffi-1.10.0-cp36-cp36m-win_amd64.whl (160kB)
100% |████████████████████████████████| 163kB 736kB/s
Collecting asn1crypto>=0.21.0 (from cryptography)
Downloading asn1crypto-0.22.0-py2.py3-none-any.whl (97kB)
100% |████████████████████████████████| 102kB 1.0MB/s
Requirement already satisfied: idna>=2.1 in c:\users\***\appdata\local\pro
grams\python\python36\lib\site-packages (from cryptography)
Collecting pycparser (from cffi>=1.7->cryptography)
Downloading pycparser-2.18.tar.gz (245kB)
100% |████████████████████████████████| 256kB 639kB/s
Installing collected packages: pycparser, cffi, asn1crypto, cryptography
Running setup.py install for pycparser ... done
Successfully installed asn1crypto-0.22.0 cffi-1.10.0 cryptography-1.9      pycparser-
2.18

C:\Users\***>

回答by David Cullen

You need to install Microsoft Visual C++ 14.0 to install pycrypto:

您需要安装 Microsoft Visual C++ 14.0 才能安装 pycrypto：

error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual
C++ Build Tools": http://landinghub.visualstudio.com/visual-cpp-build-tools

In the comments you ask which link to use. Use the link to Visual C++ 2015 Build Tools. That will install Visual C++ 14.0 without installing Visual Studio.

在评论中，您询问使用哪个链接。使用指向Visual C++ 2015 构建工具的链接。这将在不安装 Visual Studio 的情况下安装 Visual C++ 14.0。

In the comments you ask about methods of installing pycryptothat do not require installing a compiler. The binaries in the links appear to be for earlier versions of Python than you are using. One link is to a binary in a DropBox account.

在评论中，您询问pycrypto不需要安装编译器的安装方法。链接中的二进制文件似乎适用于比您使用的更早版本的 Python。一个链接是指向 DropBox 帐户中的二进制文件。

I do not recommend downloading binary versions of cryptography libraries provided by third parties. The only way to guarantee that you are getting a version of pycryptothat is compatible with your version of Python and has not been built with any backdoors is to build it from the source.

我不建议下载第三方提供的加密库的二进制版本。确保您获得的版本pycrypto与您的 Python 版本兼容并且没有使用任何后门构建的唯一方法是从源代码构建它。

After you have installed Visual C++, just re-run the original command:

安装 Visual C++ 后，只需重新运行原始命令：

pip install -U steem

To find out what the various install options mean, run this command:

要了解各种安装选项的含义，请运行以下命令：

pip help install

The help for the -Uoption says

该-U选项的帮助说

-U, --upgrade        Upgrade all specified packages to the newest available
                     version. The handling of dependencies depends on the
                     upgrade-strategy used.

If you do not already have the steemlibrary installed, you can run the command without the -Uoption.

如果您尚未安装该steem库，则可以在没有该-U选项的情况下运行该命令。

回答by Pikamander2

If you already have Visual Studio Build Tools installed but you're still getting that error, then you may need to "Modify" your installation to include the Visual C++ build tools.

如果您已经安装了 Visual Studio 构建工具，但仍然收到该错误，那么您可能需要“修改”您的安装以包含 Visual C++ 构建工具。

To do that:

要做到这一点：

1. Open up the Visual Studio Installer (you can search for it in the Start Menu if needed).

2. Find Visual Studio Build Tools and click "Modify":

1. 打开 Visual Studio 安装程序（如果需要，您可以在“开始”菜单中搜索它）。

2. 找到Visual Studio Build Tools，点击“修改”：

1. Add a checkmark to Visual C++ build tools and then click "Modify" in the bottom right to install them:

3. 为 Visual C++ 构建工具添加一个复选标记，然后单击右下角的“修改”以安装它们：

After the C++ tools finish installing, run the pip command again and it should work.

C++ 工具安装完成后，再次运行 pip 命令，它应该可以工作了。

回答by JKC

I got this error when I tried to install pymssql even though Visual C++ 2015 (14.0) is installed in my system.

尽管我的系统中安装了 Visual C++ 2015 (14.0)，但当我尝试安装 pymssql 时出现此错误。

I resolved this error by downloading the .whl file of pymssql from https://www.lfd.uci.edu/~gohlke/pythonlibs/

我通过从https://www.lfd.uci.edu/~gohlke/pythonlibs/下载 pymssql 的 .whl 文件解决了这个错误

Once downloaded, it can be installed by the following command :

下载后，可以通过以下命令安装：

pip install python_package.whl

Hope this helps

希望这可以帮助

回答by snark

I landed on this question after searching for "Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools". I got this error in Azure DevOps when trying to run pip installto build my own Python package from a source distribution that had C++ extensions. In the end all I had to do was upgrade setuptoolsbefore calling pip install:

在搜索“Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools" 后，我找到了这个问题。尝试pip install从具有C++ 扩展。最后我所要做的就是setuptools在调用之前升级pip install：

pip install --upgrade setuptools

So the advice hereabout updating setuptoolswhen installing from source archives is right after all:). That advice is given heretoo.

所以这里关于setuptools从源存档安装时更新的建议毕竟是正确的:)。这里也给出了这个建议。

回答by Rituparna Bhattacharyya

I faced the same problem. Found the fix here. https://github.com/statsmodels/statsmodels/issues/4160

我遇到了同样的问题。在这里找到了修复程序。 https://github.com/statsmodels/statsmodels/issues/4160

Basically just install

基本上只需安装

http://go.microsoft.com/fwlink/?LinkId=691126&fixForIE=.exe

http://go.microsoft.com/fwlink/?LinkId=691126&fixForIE=.exe

shasum output:

shasum 输出：

3e0de8af516c15547602977db939d8c2e44fcc0b visualcppbuildtools_full.exe md5sum output:

3e0de8af516c15547602977db939d8c2e44fcc0b visualcppbuildtools_full.exe md5sum 输出：

MD5 (visualcppbuildtools_full.exe) = 8d4afd3b226babecaa4effb10d69eb2e

MD5 (visualcppbuildtools_full.exe) = 8d4afd3b226babecaa4effb10d69eb2e

Run your pip installation command again. If everything works fine, its good. Or you might face the following error like me:

再次运行 pip 安装命令。如果一切正常，那就太好了。或者你可能会像我一样面临以下错误：

Finished generating code
    LINK : fatal error LNK1158: cannot run 'rc.exe'
    error: command 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\x86_amd64\link.exe' failed with exit status 1158

Found the fix for the above problem here: Visual Studio can't build due to rc.exe

在此处找到上述问题的修复程序： Visual Studio can't build due to rc.exe

That basically says

那基本上说

Add this to your PATH environment variables:

C:\Program Files (x86)\Windows Kits.1\bin\x86

Copy these files:

rc.exe
rcdll.dll

From

C:\Program Files (x86)\Windows Kits.1\bin\x86

To

C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\bin

It works like a charm

它就像一个魅力

回答by Ynjxsjmh

Pycrypto has vulnerabilities assigned the CVE-2013-7459number, and the repo hasn't accept PRs since June 23, 2014.

Pycrypto 存在编号为CVE-2013-7459的漏洞，并且该仓库自2014年6 月 23 日起不再接受 PR 。

Pycryptodomeis a drop-in replacement for the PyCrypto library, which exposes almost the same API as the old PyCrypto, see Compatibility with PyCrypto.

Pycryptodome是 PyCrypto 库的直接替代品，它公开的 API 与旧的 PyCrypto 几乎相同，请参阅 与 PyCrypto 的兼容性。

If you haven't install pycrypto yet, you can use pip install pycryptodometo install pycryptodome in which you won't get Microsoft Visual C++ 14.0 issue.

如果您还没有安装 pycrypto，您可以使用pip install pycryptodome安装 pycryptodome，在其中您不会遇到 Microsoft Visual C++ 14.0 问题。

回答by Alen Lee

On Windows, I strongly recommand installing latest Visual Stuido Community, it's free, you will maybe miss some build tools if you only install vc_redist, so you can easily install package by pipinstead of wheel, it save lot of time

在 Windows 上，我强烈建议安装 latest Visual Stuido Community，它是免费的，如果你只安装vc_redist，你可能会错过一些构建工具，所以你可以轻松地安装包pip而不是wheel，它节省了很多时间