Python PIP

Last Updated : 21 Apr, 2020

A package is a piece of software that provides particular features while programming. A package contains all the resources which a module requires. Modules are sets of Python code that we can add to our project. Python pip is the package manager for Python packages. pip comes pre-installed on 3.4 or older versions of Python, pip commands are used in the command prompt.
The basic syntax of pip commands in command prompt is:

pip 'arguments'

Some of the most commonly used pip commands are:

Check pip version: We can check the pip version in our system by using the below command.
Syntax:
```
pip --version
```
Example:
Install packages: We can install additional packages by using the below command.
Syntax:
```
<pip install numpy
```
Example 1: When the required package is not installed.
Example 2: When the required package is already installed.
We can also install the package of a specific version.
Syntax:
```
pip install package_name==version
```
Display package information: We can use the below command to display the details of a particular package.
Syntax:
```
pip show numpy
```
Example:
List installed packages: The below command displays a list of packages installed in the system.
Syntax:
```
pip list
```
Example:
Uninstall packages: The below command uninstall a particular existing package.
Syntax:
```
pip uninstall numpy
```
Example:
Search packages: We can search for a particular existing package using pip.
Syntax:
```
pip search numpy
```
Example:
Using requirement files: Checks if a required package is present in the system, if not then they are installed. Suppose requirements.txt has the below contents:
Syntax:
```
pip install -r requirements.txt
```
Example:
Listing additional packages: The freeze command is used to list packages that don’t come pre-installed with Python.
Syntax:
```
pip freeze
```
Example:

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Python PIP