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has2k1 / plotnine

A Grammar of Graphics for Python
https://plotnine.org
MIT License
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Warnings when used with pandas 2.1.0 #713

Closed wch closed 11 months ago

wch commented 11 months ago

With pandas 2.1.0, using plotnine results in a number of warnings from is_categorical_dtype.

For example:

from plotnine import ggplot, geom_point, aes, stat_smooth, facet_wrap
from plotnine.data import mtcars

ggplot(mtcars, aes("wt", "mpg", color="factor(gear)")) + geom_point()
#> /opt/homebrew/lib/python3.11/site-packages/plotnine/utils.py:1183: FutureWarning: is_categorical_dtype is deprecated and will be removed in a future version. Use isinstance(dtype, CategoricalDtype) instead
#> /opt/homebrew/lib/python3.11/site-packages/plotnine/utils.py:289: FutureWarning: is_categorical_dtype is deprecated and will be removed in a future version. Use isinstance(dtype, CategoricalDtype) instead
#> /opt/homebrew/lib/python3.11/site-packages/mizani/scale.py:210: FutureWarning: is_categorical_dtype is deprecated and will be removed in a future version. Use isinstance(dtype, CategoricalDtype) instead
#> /opt/homebrew/lib/python3.11/site-packages/mizani/scale.py:223: FutureWarning: is_categorical_dtype is deprecated and will be removed in a future version. Use isinstance(dtype, CategoricalDtype) instead
schloerke commented 11 months ago

Updating the example further with a facet_wrap()...

from plotnine import ggplot, geom_point, aes, stat_smooth, facet_wrap
from plotnine.data import mtcars

ggplot(mtcars, aes("wt", "mpg", color="factor(gear)")) + geom_point() + facet_wrap("~gear")
#> /venv/lib/python3.11/site-packages/plotnine/utils.py:289: FutureWarning: is_categorical_dtype is deprecated and will be removed in a future version. Use isinstance(dtype, CategoricalDtype) instead
#> /venv/lib/python3.11/site-packages/plotnine/utils.py:1183: FutureWarning: is_categorical_dtype is deprecated and will be removed in a future version. Use isinstance(dtype, CategoricalDtype) instead
#> /venv/lib/python3.11/site-packages/plotnine/utils.py:289: FutureWarning: is_categorical_dtype is deprecated and will be removed in a future version. Use isinstance(dtype, CategoricalDtype) instead
#> /venv/lib/python3.11/site-packages/plotnine/utils.py:596: FutureWarning: The default of observed=False is deprecated and will be changed to True in a future version of pandas. Pass observed=False to retain current behavior or observed=True to adopt the future default and silence this warning.
#> /venv/lib/python3.11/site-packages/mizani/scale.py:210: FutureWarning: is_categorical_dtype is deprecated and will be removed in a future version. Use isinstance(dtype, CategoricalDtype) instead
#> /venv/lib/python3.11/site-packages/mizani/scale.py:223: FutureWarning: is_categorical_dtype is deprecated and will be removed in a future version. Use isinstance(dtype, CategoricalDtype) instead
#> /venv/lib/python3.11/site-packages/plotnine/geoms/geom.py:289: FutureWarning: The default of observed=False is deprecated and will be changed to True in a future version of pandas. Pass observed=False to retain current behavior or observed=True to adopt the future default and silence this warning.
has2k1 commented 11 months ago

Fixed and released in v0.12.3.