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8th July 2022

Coding⚑

Python⚑

Python Snippets⚑

  • New: Parse an RFC2822 date.

    Interesting to test the accepted format of RSS dates.

    >>> from email.utils import parsedate_to_datetime
>>> datestr = 'Sun, 09 Mar 1997 13:45:00 -0500'
>>> parsedate_to_datetime(datestr)
datetime.datetime(1997, 3, 9, 13, 45, tzinfo=datetime.timezone(datetime.timedelta(-1, 68400)))

  • New: Convert a datetime to RFC2822.

    Interesting as it's the accepted format of RSS dates.

    >>> import datetime
>>> from email import utils
>>> nowdt = datetime.datetime.now()
>>> utils.format_datetime(nowdt)
'Tue, 10 Feb 2020 10:06:53 -0000'

  • New: Encode url.

    import urllib.parse
from pydantic import AnyHttpUrl

def _normalize_url(url: str) -> AnyHttpUrl:
    """Encode url to make it compatible with AnyHttpUrl."""
    return typing.cast(
        AnyHttpUrl,
        urllib.parse.quote(url, ":/"),
    )

    The :/ is needed when you try to parse urls that have the protocol, otherwise https://www. gets transformed into https%3A//www..

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