Blog
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pandas read_csv date parsing: Using the date_format keyword
Reading a CSV into Python Pandas, and parse_dates doesn’t recognize the format? Pass the date_format keyword arg: All strftime codes work!
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Take agentic coding to the next level
If you’re like me, then you’ve lately been exploring agentic coding, having AI write code on your behalf. What will be the impact on our work developing software? On hiring? On training? From what I can tell, the question isn’t whether we’ll be using agentic coding, but how we do so. Knowing how AI writes…
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Pandas parse_dates: Reading CSV date columns as datetimes
Reading a CSV into Python Pandas, and want a column to be treated as datetime values? Use parse_dates: Bonus: The PyArrow engine often (not always) parses columns that look like dates.
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pd.to_datetime: Converting a pandas string column to datetimes
Want to take a Python Pandas series of strings, and get datetime values? Use pd.to_datetime: Notice: It’s not a method! It’s a top-level pd function. Specify a non-standard “format” with a strftime string:
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Parse ISO date strings in Python with datetime.fromisoformat
If a Python string contains an ISO-formatted date, skip strptime and use datetime.fromisoformat:
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Python strptime vs. strftime: Parsing versus formatting dates
Having a tough time remembering Python strptime vs. strftime? – The “p” (strptime) is for parsing, getting a datetime from a string– The “f” (strftime) is for formatting, getting a string from a datetime For help remembering the format codes, turn to https://www.strfti.me/ !
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Python string to datetime: Parsing dates with strptime
Want to parse a Python string into a datetime? Use strptime, passing (a) the string and (b) the date format specification: Both return datetime.datetime(2026, 4, 1, 0, 0)
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Python datetime formatting: Using strftime for date strings
Want to format a Python datetime as a string? Use strftime:
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Timezone-aware datetime objects in Python with zoneinfo
Want a Python datetime with a timezone? Use the “zoneinfo” module: Then pass it to the “tzinfo” keyword arg:
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Creating Python datetime objects with datetime.datetime
Want a Python datetime? Just invoke datetime.datetime: Omitted time units are 0: