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pyflakes:tldr:40134
The command "pyflakes check ${filename}.py" is using the tool called "pyflakes" to perform a static analysis check on a Python file (.py extension).
Here's a breakdown of the command:
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"pyflakes": It refers to the pyflakes tool. Pyflakes is a lint-like tool for Python that checks for various errors and potential bugs in Python code. It analyzes the code statically without actually running it.
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"check": This is an argument or option passed to the pyflakes tool. It tells pyflakes to perform a check on the specified Python file.
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"${filename}.py": This is a placeholder representing the actual filename. You would replace "${filename}" with the name of the Python file you want pyflakes to check. The ".py" extension indicates that it is a Python file.
Overall, the command is instructing pyflakes to analyze a specific Python file for any potential issues or errors in the code.