Как запустить питон в windows powershell

To run a Python script in PowerShell, simply invoke the Python interpreter followed by the script’s filename in a command line.

python your_script.py

Setting Up Python in PowerShell

Installing Python

Choosing the Right Version of Python
Before you can run Python in PowerShell, you need to choose the appropriate version of Python. It’s crucial to select Python 3.x, as Python 2 has reached its end of life and is no longer supported. Visit the official Python website to determine which version suits your needs best, usually the latest stable release.

Installation Steps
To install Python on your Windows machine, follow these simple steps:

1. Download the Python installer from the official [Python website](https://www.python.org/downloads/).
2. Run the installer. Ensure that you check the box for «Add Python to PATH.» This step is essential for enabling PowerShell to recognize the Python command.
3. Follow the prompts to complete the installation.

Configuring Python in PowerShell

Setting Environment Variables
After installation, it’s good practice to make sure PowerShell can find the Python executable. If you forgot to check the «Add Python to PATH» option, you can manually add it.

Open your PowerShell window and run the following command to append Python’s installation path:

$env:Path += ";C:\Path\To\Python"

Make sure to replace `C:\Path\To\Python` with the actual installation path of Python.

Verifying the Installation
Once Python is installed and configured, verify the installation by running this command in PowerShell:

python --version

If correctly installed, this command will display the version of Python that is currently in use.

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Python vs PowerShell: Choosing Your Scripting Champion

Running Python in PowerShell: Basic Approach

Using the Python Interactive Shell

You can easily access Python’s interactive shell by simply typing `python` in your PowerShell window. This shell allows you to execute Python commands one at a time, which is helpful for testing and debugging.

Running a Simple Python Command

Running quick Python commands in PowerShell is simple and powerful. For instance, if you wish to print «Hello, World!» directly from PowerShell, you can do this:

python -c "print('Hello, World!')"

This command is a nifty way to execute small snippets of Python code without creating a whole script file.

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Function in PowerShell with Parameters: A Quick Guide

Running Python Scripts from PowerShell

Creating a Python Script

To run Python scripts from PowerShell, you’ll first need to create a script. Here’s how you can write your first Python script named `hello.py`.

Open a text editor and write the following code:

# hello.py
print("Hello from Python script!")

Next, save this file as `hello.py` in a directory where you can easily access it later.

Executing the Python Script in PowerShell

With your script in place, you can now execute it. Just navigate to the directory containing your script in PowerShell and run:

python hello.py

You should see the output:

Hello from Python script!

Running Python Scripts with Arguments

Running scripts that require input arguments is also straightforward. For instance, you can create a script, `greet.py`, that takes a name as an argument:

# greet.py
import sys
print(f"Hello, {sys.argv[1]}!")

You can run this script from PowerShell like so:

python greet.py Alice

The output will be:

Hello, Alice!

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Mastering NotIn in PowerShell for Efficient Filtering

Advanced Techniques for Running Python in PowerShell

Running Python Scripts in the Background

Sometimes, you may want to run a Python script without your PowerShell window being occupied. You can do this using the `Start-Process` command:

Start-Process python -ArgumentList "my_script.py"

This command runs `my_script.py` in the background, allowing you to use PowerShell for other tasks while the script executes.

Error Handling with Try/Catch

To ensure your scripts run smoothly, implementing error handling in PowerShell can be beneficial. Here’s an example using a try/catch block:

try {
    python my_script.py
} catch {
    Write-Host "An error occurred: $_"
}

This structure captures any errors that occur during execution and allows you to handle them gracefully.

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Python Run PowerShell Command: A Quick Guide

Common Issues and Troubleshooting

Python Not Recognized Error

If you encounter a «Python is not recognized» error, it’s likely due to an issue with your environment path. Double-check that Python is correctly added to your system’s PATH. You can do this in the System Environment Variables settings in Windows.

Dependency Issues

If your Python script depends on certain packages, you may need to install them first. Use `pip`, Python’s package installer, to install any necessary packages:

pip install package_name

Ensure that you have a solid understanding of the packages your script requires before running it.

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Get Path in PowerShell: A Quick Guide to File Paths

Conclusion

You’ve successfully learned how to run Python in PowerShell, from setup through execution and troubleshooting. Integrating Python with PowerShell opens doors to powerful automation and scripting capabilities. Embrace the blend of these technologies to enhance your productivity.

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Invoke-PowerShell: Mastering Command Execution Effortlessly

Call to Action

To further improve your skills, consider signing up for a course focused on PowerShell and Python integration. We offer concise and practical tutorials that empower you to become proficient in using both tools effectively. Stay tuned for more insightful articles and resources!

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Mastering Test-Connection in PowerShell: A Simple Guide

Additional Resources

• For further reading, check out the official [Python documentation](https://docs.python.org/3/).
• Access the [PowerShell documentation](https://docs.microsoft.com/en-us/powershell/) for additional scripting tips and tricks.

1. Run Python in PowerShell Using py Command

2. Run Python in PowerShell Using ./<filename>.py

3. Run Python in PowerShell Using ./<filename>.py in a New Window

4. Run Python in PowerShell Using python Command

5. Conclusion

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While Python comes with its own interactive shell, sometimes you may want to run Python scripts or execute Python commands within other environments, such as PowerShell on Windows.

This integration allows you to leverage Python’s capabilities alongside other functionalities provided by PowerShell, enhancing your workflow and productivity.

PowerShell is a command-line shell and scripting language developed by Microsoft for task automation and configuration management.

It provides access to various system functionalities and administrative tasks on Windows.

By running Python scripts in PowerShell, you can combine the strengths of both Python and PowerShell, enabling seamless interaction with Windows system components and resources.

In this tutorial, we will look into the multiple methods to run the Python script or .py files in Windows PowerShell. The requirement to run a Python script on a machine is to have Python installed in it. We can check the installed version of Python 2 or Python 3 in Windows PowerShell with the following commands.

Python 2:

Python 3:

If the required version of Python is not installed, it can be downloaded and installed from this link. Once we have the required version of Python, we can run the Python script in Windows PowerShell in the following ways.

Run Python in PowerShell Using py Command

We can run the Python script in PowerShell using the py command. To run the script using py command, we will need to mention the version of Python required to run the script and the name of the script file.

The example command below demonstrates how to run the Python script main.py in Windows PowerShell using py command.

But first, we have to navigate to the directory containing the file you want to open. Use the cd command followed by the path to the directory where your file is located.

If the file is located in a directory on your Desktop called “PythonScripts,” for example, you would type:

cd C:\Users\YourUsername\Desktop\PythonScripts

Here is the code the Python script file:

main.py

def greet(name):
    print(f"Hello, {name}!")


if __name__ == "__main__":
    name = input("Enter your name: ")
    greet(name)
    input("Press Enter to exit...")

This Python script showcases running Python code within the PowerShell environment. It defines a greet() function that takes a name as input and prints a personalized greeting message.

The __name__ == "__main__" block ensures that the greet() function is executed when the script is run directly.

Upon execution, the script prompts the user to enter their name using the input() function and then calls the greet() function with the entered name as an argument.

For Python 2:

For Python 3:

Output:

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The python script was able to run in PowerShell platform.

Run Python in PowerShell Using ./<filename>.py

We can also execute the Python script through Windows PowerShell using the ./ before the script name.

Normally, It will open a new window and will show the output of the script and close. The problem that can occur in this method is that the user will not be able to see the output of the script, as the output window will close after the execution of the script.

The solution to this problem is to use the input() method at the end of the script. As the input() method waits for the user to enter the input value. Therefore the output window will not close and will remain open until the user does not press the Enter key.

But, it won’t necessarily open a new window by default. The behavior depends on various factors such as the configuration of your system, your default programs, or any specific settings you might have.

Here is the code the Python script file:

main.py

def greet(name):
    print(f"Hello, {name}!")


if __name__ == "__main__":
    name = input("Enter your name: ")
    greet(name)
    input("Press Enter to exit...")

We can use the following command to run the Python script main.py through Windows PowerShell.

Output:

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In this case, it does not open a new window to execute the Python script.

Run Python in PowerShell Using ./<filename>.py in a New Window

To intentionally run the Python in PowerShell, we can execute it through the code below.

This command explicitly specifies the py command as the process to start and passes the arguments -3 (to use Python 3) and ./main.py (the path to the Python script) using the -ArgumentList parameter.

This way, PowerShell correctly understands the arguments and executes the Python script using the Python 3 interpreter in a new window.

Here is the code the Python script file:

main.py

def greet(name):
    print(f"Hello, {name}!")


if __name__ == "__main__":
    name = input("Enter your name: ")
    greet(name)
    input("Press Enter to exit...")

Command:

Start-Process py -ArgumentList "-3", "./main.py"

When you run Start-Process py -ArgumentList "-3", "./main.py", PowerShell starts a new process using the Python interpreter (py) with the specified arguments (-3 for Python 3 and ./main.py for the path to the Python script), effectively executing the Python script main.py in a separate window.

Output:

A new window opened and executed the code. When the code is done executing its commands, the window will automatically close.

In this case, it does not close yet due to input() method waiting for the input of the user.

Run Python in PowerShell Using python Command

Another way to run Python scripts in PowerShell is by directly invoking the Python interpreter (python.exe) with the script’s filename as an argument.

This method is straightforward and does not involve any additional commands.

main.py

def greet(name):
    print(f"Hello, {name}!")


if __name__ == "__main__":
    name = input("Enter your name: ")
    greet(name)
    input("Press Enter to exit...")

Here’s how you can do it:

When you run python main.py in PowerShell, it will start the Python interpreter and execute the script main.py, displaying any output in the PowerShell console.

Output:

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This method is simple and commonly used for running Python scripts in PowerShell.

Conclusion

The integration of Python scripts into PowerShell environments offers a versatile approach to executing code and automating tasks on Windows systems.

By leveraging Python’s capabilities alongside PowerShell’s administrative functionalities, users can streamline workflows and enhance productivity.

Whether executing scripts directly with py commands, opening scripts in new windows, or invoking Python explicitly with the python command, PowerShell provides flexible options for running Python code seamlessly within the Windows ecosystem.

These methods cater to diverse user preferences and scenarios, making Python-PowerShell integration a valuable tool for developers, administrators, and system users alike.

You can run Python in PowerShell the same way as from the command bar.

Run PowerShell Command as Admin

First, you have to start PowerShell as Admin. To do it, just click the magnifying glass on the Windows Toolbar and enter “powershell”.

Next, right-click the icon and run it as administrator.

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Run Python code

Now, when you have the PowerShell window open, you can start the Python interpreter by typing “python”.

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Run Python Script

In the previous section, you saw a simple text message that was executed in the python interpreter, using PowerShell.

To leave the Python interpreter, press Ctrl + Z and then Enter.

Navigate to the directory where your script is located and use this command:

It will run the script that is inside the script.py file.

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You can also run a script without changing the current dictionary, by specifying an absolute path to a file. You can use both forward-slash (/) and backslash (\).

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Run Script with Arguments

When you run Excel scripts, you can pass arguments from the command line. Take a look at this code from the sum.py file:

It takes two numbers from the command line (sys.argv[1] and sys.argv[1]) and sum them returning text and the addition result. sys.argv[0] is the first argument of our entry, which is the name of a script (sum.py).

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