CLI tools hidden in the Python standard library

• CPython

  1,314 59,531 10.0 Python

  The Python programming language

  

Not supporting multi-line statements is just because pdb doesn't bother to parse the statement to work out if it is an incomplete multi-line statement. That could be easily fixed (I have a prototype patch for that using `code.compile_command`).

The scope problems are more fundamental:

The pdb REPL calls[1] the exec builtin as `exec(code, frame.f_globals, frame.f_locals)`, which https://docs.python.org/3/library/functions.html#exec documents as:

"If exec gets two separate objects as globals and locals, the code will be executed as if it were embedded in a class definition."

And https://docs.python.org/3/reference/executionmodel.html#reso... documents that:

"The scope of names defined in a class block is limited to the class block; it does not extend to the code blocks of methods - this includes comprehensions and generator expressions since they are implemented using a function scope."

This is a fundamental limitation of `exec`. You can workaround it by only passing a single namespace dictionary to exec instead of passing separate globals and locals, which is what pdb's interact command does[2], but then it's ambiguous how to map changes to that dictionary back to the separate globals and locals dictionaries (pdb's interact command just discards any changes you make to the namespace). This too could be solved, but requires either brittle ast parsing or probably a PEP to add new functionality to exec. I'll file a bug against Python soon.

[1]: https://github.com/python/cpython/blob/25a64fd28aaaaf2d21fae...

• Python Fire

  37 26,309 6.8 Python

  Python Fire is a library for automatically generating command line interfaces (CLIs) from absolutely any Python object.

  

The cli tool [fire](https://github.com/google/python-fire/blob/master/docs/guide...) has a nifty feature where it can generate a cli for any file for you.

So random and math are somewhat usable that way

    $ python -m fire random uniform 0 1

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• FilePizza

  68 4,242 0.0 JavaScript

  :pizza: Peer-to-peer file transfers in your browser

FYI: you can use https://file.pizza/ for sending the file outside the network.

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