PIP In Python
PIP
PIP is a package manager for Python packages and modules. It is the most commonly used package manager for the Python Package Index; PIP is available by default with latest versions of Python (version above 3.4 or later)
What is a package?
A package is a container for all the files required for a module to function. These modules are basically libraries of Python that you may need to complement your program.
Do you have pip?
If you do not have a pip installation than you can download and install it by using this link.
You can also upgrade pip installed in your machine using pip command itself
$ pip install - -upgrade pip
You can install the latest version of a package named pack using pip very easily by pip commands:
$ pip install pack
You can also install a specific version of a package:
$ pip install pack==2.1.4
You can also describe a minimum version to be installed:
$ pip install pack>=2.1.3
You can use sudo with the commands If the permission is denied error is prompted on Linux/Unix.
Once you have installed the package you can check it using freeze command:
$ pip freeze
To list all the packages installed you can use the list command
$ pip list
The output will be something like
docutils (0.9.1)
Jinja2 (2.6)
Pygments (1.5)
Sphinx (1.1.2)
You can also list outdated packages using the command
$ pip list - -outdated
An already installed package can also be updated using the upgrade command
$ pip install - -upgrade pack
You can use uninstall command to uninstall some package
$ pip uninstall pack
We can use import keyword to use any installed package
c = camelcase.CamelCase()
txt = "hello world"
print(c.hump(txt))