Installing packages in python using PIP
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PIP is a package management system used to install packages from repository. You can use pip to install various software packages available on
Installing pip
Python 2.7.9 and later (python2 series), and Python 3.4 and later (python 3 series) already comes with pip.
To check your python version you need to enter the following command :
| 1 | python -V |
If your python version do not belong to any of above mentioned versions then you need to manually install pip (see links below) .
Installing packages
Suppose you want to install a package called requests (which is used to make HTTP requests). You need to issue the following command.
| 1 | pip install requests# this will install latest request package |
| 1 | pip install requests==2.6.0# this will install requests 2.6.0 package not the latest package |
| 1 | pip install requests>=2.6.0# specify a minimum version if it's not available pip will install the latest version |
Note: pip.exe is stored under C:\Python34\Scripts , so you need to go there to install packages. Alternatively add the whole path to PATH environment variable. This way you can access pip from any directory.
Uninstalling packages
To uninstall the package use the command below.
| 1 | pip uninstall package_name |
Upgrade Package
| 1 | pip install--upgrade package_name |
Searching for a package
| 1 | pip search"your query" |
Note: You don’t need to add quotes around your search term.
Listing installed packages
| 1 | pip list |
above command will list all the installed packages.
Listing outdated installed packages
| 1 | pip list--outdated |
Details about installed packages
You can use the following command to get information about a installed package, i.e Package name, version, location, dependencies.
| 1 | pip show package_name |
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