Python Env Issues and Workaroud Ubuntu 16 LTS 

 
 https://www.digitalocean.com/community/tutorials/how-to-install-and-use-tensorflow-on-ubuntu-16-04
 https://www.digitalocean.com/community/tutorials/how-to-install-python-3-and-set-up-a-local-programming-environment-on-ubuntu-16-04
 https://www.digitalocean.com/community/tutorials/how-to-install-python-3-and-set-up-a-local-programming-environment-on-ubuntu-16-04
1.Installing Python
Ubuntu 16 comes with Python 2.7 and 3.5 both.
To install pip3...
 
 sudo apt-get install python3-pip


 pip3 -V


 pip3 install --upgrade pip
 
2.Virtual Env
 
 a)sudo -H pip3 install virtualenv
 b) virtualenv -p /usr/bin/python3 menv35 
 c) source ~/venv35/bin/activate 
 d) python -m pip install --upgrade pip
 


Ub untu18   https://linoxide.com/linux-how-to/setup-python-virtual-environment-ubuntu/




2# Centos python 






python -m pip install --upgrade pip


 


3. Anaconda Issues.........


 


 


anaconda sucks...when one installs packages not included with it..


 


as dependencies fail and give unstatisfied error. 


 


 


./configure --prefix=/somewhere/else/than/usr/local


 


 


 

If you get the following error message

zipimport.ZipImportError: can't decompress data; zlib not available
install the ‘zlib1g-dev’ package



apt-get install zlib1g-dev



 ./configure --prefix=/home/adarsh/work/python36 --with-zlib



sudo make

sudo make install





=====================



While installing pkgs if under proxy..u face errors like



Retrying (Retry(total=0, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7fcf0da195f8>: Failed to establish a new connection: [Errno 101] Network is unreachable',)': /simple/matplotlib/



use

python3 -mpip install -U matplotlib --proxy="http://usid:pwd@proxy.domain.com:8080"






































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