ValueError: too many values to unpack (expected 2)
Tuple unpacking got more (or fewer) values than variables on the left.
Exact message you may see
too many values to unpacknot enough values to unpack
Seen on:
Python
Meaning
Common when iterating a dict without .items(), splitting strings with more separators than expected, or functions returning a different number of values.
Common causes
- for k, v in dict: (missing .items())
- line.split(",") returning more parts
- Function returns a different tuple size
⚡ Quick fix
- Use for k, v in d.items()
- split with maxsplit: s.split(",", 1)
- Use star-unpacking: first, *rest = parts
Detailed fix by platform
Python
key, value = line.split("=", 1)
How to diagnose
- Values — Expected vs actual count
- Source — What is being unpacked?
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Last updated 13 Oct 2026