Ubuntu安裝python3.7版

https://blog.csdn.net/u014775723/article/details/85213793

failed to fetch ppa:https://blog.csdn.net/qq_26093511/article/details/78754574

https://blog.csdn.net/u014775723/article/details/85224447

Python build finished successfully!
The necessary bits to build these optional modules were not found:
_bz2                  _ssl                  _uuid              
readline                                                       
To find the necessary bits, look in setup.py in detect_modules() for the module's name.


The following modules found by detect_modules() in setup.py, have been
built by the Makefile instead, as configured by the Setup files:
_abc                  atexit                pwd                
time                                                           


Could not build the ssl module!
Python requires an OpenSSL 1.0.2 or 1.1 compatible libssl with X509_VERIFY_PARAM_set1_host().
LibreSSL 2.6.4 and earlier do not provide the necessary APIs, https://github.com/libressl-portable/portable/issues/381

running build_scripts
copying and adjusting /home/afda/Python-3.7.1/Tools/scripts/pydoc3 -> build/scripts-3.7
copying and adjusting /home/afda/Python-3.7.1/Tools/scripts/idle3 -> build/scripts-3.7
copying and adjusting /home/afda/Python-3.7.1/Tools/scripts/2to3 -> build/scripts-3.7
copying and adjusting /home/afda/Python-3.7.1/Tools/scripts/pyvenv -> build/scripts-3.7
changing mode of build/scripts-3.7/pydoc3 from 664 to 775
changing mode of build/scripts-3.7/idle3 from 664 to 775
changing mode of build/scripts-3.7/2to3 from 664 to 775
changing mode of build/scripts-3.7/pyvenv from 664 to 775
renaming build/scripts-3.7/pydoc3 to build/scripts-3.7/pydoc3.7
renaming build/scripts-3.7/idle3 to build/scripts-3.7/idle3.7
renaming build/scripts-3.7/2to3 to build/scripts-3.7/2to3-3.7
renaming build/scripts-3.7/pyvenv to build/scripts-3.7/pyvenv-3.7
gcc -pthread   -Xlinker -export-dynamic -o Programs/_testembed Programs/_testembed.o libpython3.7m.a -lpthread -ldl  -lutil   -lm  
sed -e "s,@EXENAME@,/usr/local/bin/python3.7m," < ./Misc/python-config.in >python-config.py
LC_ALL=C sed -e 's,\$(\([A-Za-z0-9_]*\)),\$\{\1\},g' < Misc/python-config.sh >python-config

Python3 ssl模块不可用的问题:https://www.cnblogs.com/minglee/p/9232673.html 

https://www.cnblogs.com/mlgjb/p/7976561.html

Requirement already satisfied: numpy in ./.local/lib/python3.6/site-packages (1.16.0):https://blog.csdn.net/qq_33547191/article/details/86552214

numpy-python3.7:https://blog.csdn.net/qq_41670196/article/details/79374385

pip-python3.7:https://blog.csdn.net/weixin_43079274/article/details/94347388

https://www.jianshu.com/p/27bf1afbbebc

ubuntu的Python3.7缺少ssl：https://blog.csdn.net/CSDN_fzs/article/details/103220535

https://blog.csdn.net/love_cjiajia/article/details/82254371

https://blog.csdn.net/weixin_30750335/article/details/95277610

https://blog.51cto.com/13544424/2149473?cid=722522

安裝失敗提示：error:no such directory or file。permission denied。原因：安裝需要獲得sudo權限。

The directory '/home/afda/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.

windows环境pip安装时一直报错Could not fetch URL https://pypi.org/simple/xrld/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url:https://www.cnblogs.com/jiyanjiao-702521/p/9960071.html

python3.7 -m pip install numpy -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com:https://blog.csdn.net/yanwenyuan0304/article/details/86072970

python3.7 -m pip install torch torchvision -i  http://pypi.douban.com/simple/ --trusted-host pypi.douban.com:https://blog.csdn.net/suswulongyuan/article/details/90547443 測試torch支持不支持gpu

pycharm:https://blog.csdn.net/qq_15192373/article/details/81091278

python3.6 -m pip install --upgrade six

sudo python3.6 -m pip install tensorflow_gpu-1.12.0-cp36-cp36m-manylinux1_x86_64.whl -ignore-installed six -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com
sudo python3.7 -m pip install tensorboard -i  http://pypi.douban.com/simple/ --trusted-host pypi.douban.com : https://blog.csdn.net/u010469993/article/details/80950510

指定gpu:https://blog.csdn.net/kongkongqixi/article/details/100521590   AssertionError: CUDA unavailable, invalid device gpu requested

Pytorch 使用不同版本的 cuda:https://www.cnblogs.com/yhjoker/p/10972795.html   torch.cuda.is_available()

cuda10.1:https://blog.csdn.net/BigData_Mining/article/details/99670642

print(torch.version.cuda)

torch.__version__

torch.cuda.device_count() 

torch.cuda.get_device_name(0) https://blog.csdn.net/nima1994/article/details/83001910?utm_source=blogxgwz9

如何检查pytorch是否正在使用GPU？:https://blog.csdn.net/qq_35435964/article/details/100928501

python3中pip3安装出错,找不到SSL的解决方式:https://www.jb51.net/article/176223.htm

在終端，輸入python和python3，可以看到python3.7.1，

不如直接用Anaconda ，或者是conda