Tag: python3

Upgrade python packages with pip: use “sudo” or “–user”?

pip install -U PACKAGENAME --user

With --user they are installed in your $HOME directory in:

$HOME/.local/lib/python2.7/site-packages

Using sudo your package will be installed in:

/usr/local/lib/python2.7/dist-packages/

How to get pip to work behind a proxy server

On Ubuntu, you can set proxy by using

export http_proxy=http://username:password@proxy:port
export https_proxy=http://username:password@proxy:port

or if you are having SOCKS error use

export all_proxy=http://username:password@proxy:port

Then run pip

sudo -E pip3 install {packageName}

The pip’s proxy parameter is, according to pip --help, in the form scheme://[user:passwd@]proxy.server:port

You should use the following:

pip install --proxy http://user:password@proxyserver:port TwitterApi

Also, the HTTP_PROXY env var should be respected.

Yum crashed with Keyboard Interrupt error

I installed the newer version of python (3.2.3) than the one available in Fedora16 (python2.7)

And now yum stops working. It shows the following error.

[root@localhost yum-3.4.3]# yum
  File "/usr/bin/yum", line 30
   except KeyboardInterrupt, e:
                        ^

Because yum dose not support Python3. You can run command vi /usr/bin/yum, change /usr/bin/python to /usr/bin/python2 in first line. Thus you can run the command yum by Python2 instead of Python3.

python pip broken on ubuntu: forcing reinstallation of alternative /usr/bin/pip2 because link group pip is broken

I got the same error. I did this and it worked!

sudo apt-get install --reinstall python2.7

This to reinstall python. Don’t ever try to uninstall python ,it will crash your OS as part of Ubuntu is dependent on python.Then,

sudo apt-get purge python-pip

This is to remove pip.

 wget https://bootstrap.pypa.io/get-pip.py

Installs pip..`

sudo python get-pip.py

Then,you can install packages using pip like

sudo pip install package-name