Viewed 53k times. Python 3 includes "py" and "pyw" which helps me to easily start different Pythons, for example: "py Next-Door Tech 1 1 gold badge 1 1 silver badge 12 12 bronze badges. Vespene Gas Vespene Gas 1, 1 1 gold badge 13 13 silver badges 19 19 bronze badges.
If you use conda to install the versions, type conda env list in your cmd. Link to conda doc — Melvin. What if you have a look at the list of installed programs? You may have one entry for each python version. Patol75 I'm using Microsoft Window In my "Start" menu, for Python 3. But for Python 2. But I'm able to start Python 2.
It means "py. I was thinking of something like this kencenerelli. Add a comment. With its simple syntax, high productivity, and amazing open-source libraries, Python can be used for just about anything. However, you might have seen that some people use Python 2, while others prefer Python 3.
If the application is written in Python 2, you may not be able to run it using Python 3. So, you should definitely know the version of Python installed on your computer. Then, for any of the operations systems above, you simply type python --version OR python -V, on the command line and press Enter.
Depending on your Python distribution, you may get more information in the result set. However, the number next to Python is the version number, which is what we are looking for. In this case, the full version number is 3. Usually, we are interested in the major version — Python 2 or Python 3. This is indicated by the first number of the full version number. This number is 3 in our case, which means that we have Python 3 installed on our computer.
Starting from Python 3. Sometimes you may want to check the version of Python when you are coding an application i. This is especially useful when you have multiple Python versions installed on your computer. To check which Python version is running, you can use either the sys or the platform module. For more understanding, you can check the complete guide for managing Python modules using pip. Run following commands on the command line not on Python console.
You get the complete list of installed Python modules with their versions. Here is an example of listing Python package you have installed on your system using the pip tool. Note: Before running this command, ensure if there is a pip installed on your system. For Python version 2. The format of the output list of both commands is totally different.
Suppose you are using these command in shell scripting. You can choose any of the commands which you find easy for parsing the output package list and get the information. If you already have parsing code for any of the output from two commands, you can use that command. Related Read: Why you should learn Shell scripting? Python vs Shell Scripting. You can reach out to the author for any specific query related to the Python package. You can use pip commands with grep command to search for any specific module installed on your system.
In an upcoming article, I will share, how you can write a Python program to get a list of Python packages and save them in a list. If you find these commands useful for Python list installed modules, share with your friends. They extended the deadline because of the large number of developers using Python 2. Python 3 includes a 2 to 3 utility that helps translate Python 2 code into Python 3. Most out-of-the-box Windows installations do not come with Python pre-installed.
However, it is always a good idea to check. Press the Windows key to start a search, then type Python. The system will return any results that match. Most likely a match will show something similar to:. Note: In some cases, this will return a screen full of information. If that happens, just scan through the file locations for the word python with a number after it.
That number is the version. Python2 and Python3 are different programs. Many programs upgrade from the older version to the newer one.
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