我有以下代码
expr = pl.when(False).then(None)
for pattern, replacement in replacement_rules.items():
expr = expr.when(pl.col("data").str.contains(pattern))
expr = expr.then(pl.lit(replacement))
expr = expr.when(pl.col("ISO_codes").str.len_chars() > 0)
expr = expr.then(
pl.col("ISO_codes")
.replace(iso_translation, default="Unknown ISO Code")
)
The code works as intended, but Mypy is not too happy about it:
我不明白如何在不丢失所有"类型不兼容"警告的情况下消除警告，或者重写代码以使其消失.