Running python scripts in cmd

To run a Python script in CMD, follow these steps:

Open CMD.
Navigate to the directory where the script is located using the “cd” command.
Type “python myscript.py” and press Enter, where “myscript.py” is the name of your Python script.

Alternatively, you can use the “py” command to run Python scripts if it’s recognized by the system. To use the “py” command, follow these steps:

Open CMD.
Navigate to the directory where the script is located using the “cd” command.
Type “py myscript.py” and press Enter, where “myscript.py” is the name of your Python script.

Running Python scripts in CMD is beneficial because it allows you to automate tasks and perform system administration. You can also use CMD to pass command-line arguments to Python scripts, which we will cover in the next section.

Adding a Directory to the PATH Variable

To run Python scripts from anywhere in CMD, you can add the directory path to the system’s “PATH” variable. To add a directory path to the “PATH” variable, follow these steps:

Open the Start menu and search for “Environment Variables.”
Click on “Edit the system environment variables.”
Click on the “Environment Variables” button.
Under “System Variables,” scroll down and find the “Path” variable and click “Edit.”
Click “New” and add the path to the directory where your Python scripts are located.
Click “OK” to save the changes.

By adding the directory path to the “PATH” variable, you can run Python scripts from any directory in CMD.

Executing Shell Commands with Python

You can use Python to execute shell commands, such as starting other programs or managing shell scripts. To execute shell commands with python, use the “subprocess” module. Here’s an example:

import subprocesssubprocess.run(["dir"])

The code above will run the “dir” command in CMD and display the output in the Python console.

Passing Command-Line Arguments to Python Scripts

You can pass command-line arguments to Python scripts using the “sys” module. Here’s an example:

The code above will print all command-line arguments passed to the script.

Running Python Scripts in the Background

You can use the “pythonw” command to run Python scripts in the background without opening a new CMD window. To run a Python script in the background, follow these steps:

Open CMD.
Navigate to the directory where the script is located using the “cd” command.
Type “start pythonw myscript.py” and press Enter, where “myscript.py” is the name of your Python script.

Running Python scripts in the background is beneficial because it allows you to perform other tasks in CMD without interrupting the script.

Running Python Scripts in an IDE or Jupyter Notebook

While CMD is an excellent tool for running Python scripts, you may prefer to use an IDE (Integrated Development Environment) or Jupyter Notebook for Python development. IDEs provide a more robust development environment, while Jupyter Notebook allows you to create and share interactive documents containing live code, equations, visualizations, and narrative text.

To run Python scripts in an IDE or Jupyter Notebook, follow the instructions provided by the software. Each IDE or Jupyter Notebook has its own way of running Python scripts.

Additional Information

When writing Python scripts, it’s essential to follow PEP 8 guidelines and use virtual environments. PEP 8 is a set of coding conventions for Python code. Virtual environments allow you to create isolated Python environments for each project, which helps prevent conflicts between different projects.

You can manage Python environments using package managers like pip and conda and create requirements files to ensure that your code is easily reproducible. When running Python scripts, you may encounter common issues such as errors with module imports and syntax errors. To avoid these issues, it’s essential to test your code thoroughly before running it in production.

Python has a vast array of modules available for development, including NumPy, Pandas, and Matplotlib. These modules provide additional functionality for data analysis, scientific computing, and visualization.

If you’re new to Python, there are many resources available to help you learn, including cheat sheets for python syntax and functions. The latest version of Python as of 2021 is Python 3.10, which includes many new features and improvements.

Additional code samples for running Python scripts in CMD

In Python case in point, how to run python file from cmd code example

// To run pytho script from CMD // type python and the name of the file. Assuming hello.pypython hello.py

In Python , in particular, running a python script from command line. code sample

In Shell as proof, run python program from command line code sample

# press [windows] + [R] (on windows only) # use the command : cd/the_way_of_your_program # and now use this command :py the_name_of_your_program.py # don't forget to write the extension (py for python) # at the end of your program name

In Python , for instance, run python file from cmd code example

# If the .py file is on the desktop, to run the file: cd Desktop FileName.py

# move to the directory where the script is located and run it like so cd (path to directory) python name.py

Conclusion

In conclusion, running python scripts in cmd on windows is an essential skill for anyone working with Python. By following the steps outlined in this article, you can run Python scripts in CMD, add directories to the path variable, execute shell commands with Python, pass command-line arguments to Python scripts, run Python scripts in the background, and run Python scripts in an IDE or Jupyter Notebook.

We also covered additional information, including PEP 8 guidelines, virtual environments, and popular Python modules. By following best practices and using the right tools, you can write Python code that is efficient, scalable, and easy to maintain.

We hope this article has been helpful in guiding you through the process of running Python scripts in CMD on Windows. Try running some scripts on your own and see how you can automate tasks and increase your productivity.

Источник

Запуск файла Python из командной строки Windows

В этой статье мы рассмотрим, как запустить файл Python с помощью командной строки в Windows. Это поможет вам выполнять ваш код Python, не открывая его в интерпретаторе или редакторе кода. Давайте приступим!

Для запуска файла Python в командной строке, у вас должен быть установлен Python. Если вы до сих пор этого не сделали, то вы можете воспользоваться нашем руководством: Установка Python на Windows.

Как открыть командную строку Windows

Для начала нам необходимо открыть командную строку Windows. Это можно сделать зажав одновременно клавиши WIN + R, в открывшемся окне введите «cmd» и нажмите клавишу Enter.

О других способах открытия командной строки, мы писали ранее в нашей статье.

Как перейти в директорию с файлом Python

Для запуска файла Python нам необходимо перейти в командной строке в директорию, где находится данный файл.

Для этого вы можете использовать команду cd (change directory). Например, если ваш файл Python находится в директории «C:\my_python_files», вы можете ввести команду «cd C:\my_python_files». После этого вы будете находиться в этой директории и готовы к запуску файла Python.»

Если ваш файл Python находится на другом диске, то вам необходимо сначала сменить диск в командной строке. Для этого вы можете ввести название диска, например, «D:», и нажать Enter. Затем вы можете использовать команду «cd», как в примере выше.

Более подробно о команде «cd» вы можете узнать из нашей статьи.

Запуск файла Python

После того, как в командной строке вы перешли в директорию, где находится ваш файл, вы можете использовать команду ‘python .py’, чтобы запустить файл. Например, если ваш файл называется ‘hello_world.py’, вы можете ввести ‘python hello_world.py’, чтобы запустить этот файл. После чего файл будет исполнен.

Источник

Running python scripts in cmd