ASN.1(抽象语法标记)是一种跨平台数据描述语言,通过TLV结构(类型-Tag、长度-Length、值-Value)实现结构化数据的标准化编码。其特点包括:
) 发现pip3还是之前的版本,需要重新更新并修改配置 安装scrapy $pip install scrapy 出现问题 pyasn1-modules 0.2.2 has requirement pyasn1 <0.5.0,>=0.4.1, but you'll have pyasn1 0.1.9 which is incompatible. 解决方法需要使用sudo权限卸载pyasn1,然后重新安装即可。 $ sudo pip uninstall pyasn1 $ sudo pip install scrapy
解决办法: pip install pyopenssl ndg-httpsclient pyasn1 截至接续pip install salt ,可能还会报tornado requires an up-to-date
cp27-cp27m-win_amd64.whl (1.3MB) 100% |████████████████████████████████| 1.3MB 54kB/s Collecting pyasn1 ███████████████████████| 225kB 13kB/s Installing collected packages: pycparser, cffi, idna, enum34, pyasn1
__version__()测试 如果遇到pyasnl no found...错误,按如下解决: pip install pyopenssl ndg-httpsclient pyasn1
0.3.2 oauthlib==0.6.1 oneconf==0.3.7 PAM==0.4.2 paramiko==1.7.6 Pillow==2.7.0 piston-mini-client==0.7.5 pyasn1
install Scrapy OSX还是需要额外一些包或升级的,包括: cssselect, queuelib, six, w3lib, lxml, Twisted, characteristic, pyasn1
unless we're not using pyOpenSSL、Can you confirm that `pip freeze` lists pyOpenSSL, ndg-httpsclient, and pyasn1
/lib/pyasn1/ ./lib/pyasn1/codec/ ./lib/pyasn1/codec/cer/ ./lib/pyasn1/codec/cer/__init__.py . /lib/pyasn1/codec/cer/decoder.py ./lib/pyasn1/codec/cer/encoder.py 前面已经配置好网络,如下图也可以直接 wget 下载软件包。
解决: 在安装requests库时,它会跳过一些SSL/Https连接所需的可选安全包('pyOpenSSL','ndg-httpsclient'和'pyasn1')。 pip install pyOpenSSL pip install ndg-httpsclient pip install pyasn1 这里先上一个demo: # -*- coding: utf-8
MarkupSafe==0.18 mongoengine==0.9.0 numpy==1.14.0 pandas==0.22.0 parsel==1.3.1 pdfkit==0.6.1 pipreqs==0.4.9 pyasn1
hyperlink, Twisted, cssselect, w3lib, parsel, asn1crypto, pycparser, cffi, cryptography, pyOpenSSL, pyasn1
psutil 5.7.2 publicsuffix2 2.20191221 py 1.10.0 pyasn1
MarkupSafe==0.18 mongoengine==0.9.0 numpy==1.14.0 pandas==0.22.0 parsel==1.3.1 pdfkit==0.6.1 pipreqs==0.4.9 pyasn1
Raspberry PI 3 Step3:安装python-rdpy包 #pip install twisted pyopenssl qt4reactor service_identity rsa pyasn1
idna==3.3 joblib==1.1.0 oauth2client==4.1.3 opencv-python==4.5.4.58 openpyxl==3.0.7 protobuf==3.19.1 pyasn1
python-glade2 sudo apt-get -y install python-nacl python-bcrypt sudo pip install pycrypto sudo pip install pyasn1
psutil 5.7.2 publicsuffix2 2.20191221 py 1.10.0 pyasn1
yum install python-devel libffi-devel openssl-devel pip install pyopenssl ndg-httpsclient pyasn1 在运行pip
noarch::opt_einsum-3.1.0-py_0 protobuf anaconda/linux-64::protobuf-3.12.3-py37he6710b0_0 pyasn1