How to Check and Print Python Version?

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In this tutorial, you will learn how to print the version of the current Python installation from the script.

Print Python Version using sys Module

The sys module comes as a built-in utility with Python installation, and to check the Python version, use sys.version property.

<span>import</span> <span>sys</span>
<span># Prints current Python version </span><span>print</span><span>(</span><span>"Current version of Python is "</span><span>,</span> <span>sys</span><span>.</span><span>version</span><span>)</span>
<span>import</span> <span>sys</span>

<span># Prints current Python version </span><span>print</span><span>(</span><span>"Current version of Python is "</span><span>,</span> <span>sys</span><span>.</span><span>version</span><span>)</span>
import sys

# Prints current Python version print("Current version of Python is ", sys.version)

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Output

<span>Current</span> <span>version</span> <span>of</span> <span>Python</span> <span>is</span> <span>3.9</span><span>.</span><span>7</span> <span>(</span><span>tags</span><span>/</span><span>v3</span><span>.</span><span>9.7</span><span>:</span><span>1016</span><span>ef3</span><span>,</span> <span>Aug</span> <span>30</span> <span>2021</span><span>,</span> <span>20</span><span>:</span><span>19</span><span>:</span><span>38</span><span>)</span> <span>[</span><span>MSC</span> <span>v</span><span>.</span><span>1929</span> <span>64</span> <span>bit</span> <span>(</span><span>AMD64</span><span>)]</span>
<span>Current</span> <span>version</span> <span>of</span> <span>Python</span> <span>is</span> <span>3.9</span><span>.</span><span>7</span> <span>(</span><span>tags</span><span>/</span><span>v3</span><span>.</span><span>9.7</span><span>:</span><span>1016</span><span>ef3</span><span>,</span> <span>Aug</span> <span>30</span> <span>2021</span><span>,</span> <span>20</span><span>:</span><span>19</span><span>:</span><span>38</span><span>)</span> <span>[</span><span>MSC</span> <span>v</span><span>.</span><span>1929</span> <span>64</span> <span>bit</span> <span>(</span><span>AMD64</span><span>)]</span>
Current version of Python is 3.9.7 (tags/v3.9.7:1016ef3, Aug 30 2021, 20:19:38) [MSC v.1929 64 bit (AMD64)]

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If you are looking for details on the version, such as major, minor, type of release, etc., you can use *sys.version_info * property.

The *version_info * property prints the Python version in tuple format, which gives detailed information as shown below.

<span>import</span> <span>sys</span>
<span># Prints current Python version </span><span>print</span><span>(</span><span>"Current version of Python is "</span><span>,</span> <span>sys</span><span>.</span><span>version_info</span><span>)</span>
<span>import</span> <span>sys</span>

<span># Prints current Python version </span><span>print</span><span>(</span><span>"Current version of Python is "</span><span>,</span> <span>sys</span><span>.</span><span>version_info</span><span>)</span>
import sys

# Prints current Python version print("Current version of Python is ", sys.version_info)

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Output

<span>Current</span> <span>version</span> <span>of</span> <span>Python</span> <span>is</span> <span>sys</span><span>.</span><span>version_info</span><span>(</span><span>major</span><span>=</span><span>3</span><span>,</span> <span>minor</span><span>=</span><span>9</span><span>,</span> <span>micro</span><span>=</span><span>7</span><span>,</span> <span>releaselevel</span><span>=</span><span>'final'</span><span>,</span> <span>serial</span><span>=</span><span>0</span><span>)</span>
<span>Current</span> <span>version</span> <span>of</span> <span>Python</span> <span>is</span> <span>sys</span><span>.</span><span>version_info</span><span>(</span><span>major</span><span>=</span><span>3</span><span>,</span> <span>minor</span><span>=</span><span>9</span><span>,</span> <span>micro</span><span>=</span><span>7</span><span>,</span> <span>releaselevel</span><span>=</span><span>'final'</span><span>,</span> <span>serial</span><span>=</span><span>0</span><span>)</span>
Current version of Python is sys.version_info(major=3, minor=9, micro=7, releaselevel='final', serial=0)

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Print Python Version using platform Module

The other alternative way is to use a platform module in Python where you can leverage the built-in function platform.python_version() to print the current installed Python version in your machine.

<span>import</span> <span>platform</span>
<span># Prints current Python version </span><span>print</span><span>(</span><span>"Current version of Python is "</span><span>,</span> <span>platform</span><span>.</span><span>python_version</span><span>())</span>
<span>import</span> <span>platform</span>

<span># Prints current Python version </span><span>print</span><span>(</span><span>"Current version of Python is "</span><span>,</span> <span>platform</span><span>.</span><span>python_version</span><span>())</span>
import platform

# Prints current Python version print("Current version of Python is ", platform.python_version())

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Output

<span>Current</span> <span>version</span> <span>of</span> <span>Python</span> <span>is</span> <span>3.9</span><span>.</span><span>7</span>
<span>Current</span> <span>version</span> <span>of</span> <span>Python</span> <span>is</span> <span>3.9</span><span>.</span><span>7</span>
Current version of Python is 3.9.7

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Print Python version using command line

If you don’t want to write any script but still want to check the current installed version of Python, then navigate to shell/command prompt and typepython --version

<span>python</span> <span>--</span><span>version</span>
<span># Output # 3.9.7 </span>
<span>python</span> <span>--</span><span>version</span>

<span># Output # 3.9.7 </span>
python --version

# Output # 3.9.7 

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原文链接：How to Check and Print Python Version?