Misc

Random tips and tricks when dealing with Python

No space left on device when installing dependencies

Set the TMPDIR env var to a folder on a device with enough space. Make sure the folder has been created beforehand.

export TMPDIR=$HOME/.piptmp
mkdir -p $TMPDIR
pip install ...

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Serving files over HTTP

Python comes with a builtin HTTP server that can be used to serve files:

python -m http.server

Default behaviour is to bind on 0.0.0.0 and listen on 8000, and serve the files in the current directory.

To change the bind address, use the -b, --bind option

python -m http.server --bind 127.0.0.1

To change the port it listens on, provide it as parameter:

python -m http.server 9000

To serve a specific folder, use the -d, --directory option:

python -m http.server --directory /tmp/

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Dump attributes and values of a given object

def dump(obj):
    from pprint import pprint
    attrs = [attr for attr in dir(obj) if not attr.startswith("_")]
    res = {}
    for attr in attrs:
        try:
            value = getattr(obj, attr)
        except Exception as e:
            value = f"<Error retrieving attribute: {e}>"
        res[attr] = value
    pprint(res)