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DOC: fixed Ex03 errors in docstrings: pandas.io.formats.style.Styler.to_latex and pandas.read_parquet #56953

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merged 1 commit into from
Jan 19, 2024
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DOC: fixed Ex03 errors in docstrings: pandas.io.formats.style.Styler.to_latex and pandas.read_parquet #56953

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2 changes: 0 additions & 2 deletions ci/code_checks.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -77,8 +77,6 @@ if [[ -z "$CHECK" || "$CHECK" == "docstrings" ]]; then
pandas.errors.SpecificationError \
pandas.errors.UndefinedVariableError \
pandas.read_json \
pandas.io.formats.style.Styler.to_latex \
pandas.read_parquet \
pandas.DataFrame.to_sql \
RET=$(($RET + $?)) ; echo $MSG "DONE"

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21 changes: 12 additions & 9 deletions pandas/io/formats/style.py
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Original file line number Diff line number Diff line change
Expand Up @@ -987,11 +987,11 @@ def to_latex(
hide the repeated level-0 of the index:

>>> (styler.format(subset="Equity", precision=2)
... .format(subset="Stats", precision=1, thousands=",")
... .format(subset="Rating", formatter=str.upper)
... .format_index(escape="latex", axis=1)
... .format_index(escape="latex", axis=0)
... .hide(level=0, axis=0)) # doctest: +SKIP
... .format(subset="Stats", precision=1, thousands=",")
... .format(subset="Rating", formatter=str.upper)
... .format_index(escape="latex", axis=1)
... .format_index(escape="latex", axis=0)
... .hide(level=0, axis=0)) # doctest: +SKIP

Note that one of the string entries of the index and column headers is "H&M".
Without applying the `escape="latex"` option to the `format_index` method the
Expand All @@ -1003,12 +1003,15 @@ def to_latex(
recommendation:

>>> def rating_color(v):
... if v == "Buy": color = "#33ff85"
... elif v == "Sell": color = "#ff5933"
... else: color = "#ffdd33"
... if v == "Buy":
... color = "#33ff85"
... elif v == "Sell":
... color = "#ff5933"
... else:
... color = "#ffdd33"
... return f"color: {color}; font-weight: bold;"
>>> (styler.background_gradient(cmap="inferno", subset="Equity", vmin=0, vmax=1)
... .map(rating_color, subset="Rating")) # doctest: +SKIP
... .map(rating_color, subset="Rating")) # doctest: +SKIP

All the above styles will work with HTML (see below) and LaTeX upon conversion:

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6 changes: 5 additions & 1 deletion pandas/io/parquet.py
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Expand Up @@ -510,6 +510,9 @@ def read_parquet(
"""
Load a parquet object from the file path, returning a DataFrame.

The function automatically handles reading the data from a parquet file
and creates a DataFrame with the appropriate structure.

Parameters
----------
path : str, path object or file-like object
Expand Down Expand Up @@ -591,6 +594,7 @@ def read_parquet(
Returns
-------
DataFrame
DataFrame based on parquet file.

See Also
--------
Expand All @@ -600,7 +604,7 @@ def read_parquet(
--------
>>> original_df = pd.DataFrame(
... {{"foo": range(5), "bar": range(5, 10)}}
... )
... )
>>> original_df
foo bar
0 0 5
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