DEPR: remove DataFrame.colSpace in favor of col_space, circa v0.8.0

Author: jreback

doc/source/whatsnew/v0.17.0.txt

@@ -672,6 +672,7 @@ Removal of prior version deprecations/changes
 - Remove use of some deprecated numpy comparison operations, mainly in tests. (:issue:`10569`)
 - Removal of ``na_last`` parameters from ``Series.order()`` and ``Series.sort()``, in favor of ``na_position``, xref (:issue:`5231`)
 - Remove of ``percentile_width`` from ``.describe()``, in favor of ``percentiles``. (:issue:`7088`)
+- Removal of ``colSpace`` parameter from ``DataFrame.to_string()``, in favor of ``col_space``, circa 0.8.0 version.
 
 .. _whatsnew_0170.performance:
 

pandas/core/frame.py

@@ -1396,7 +1396,7 @@ def to_stata(
         writer.write_file()
 
     @Appender(fmt.docstring_to_string, indents=1)
-    def to_string(self, buf=None, columns=None, col_space=None, colSpace=None,
+    def to_string(self, buf=None, columns=None, col_space=None,
                   header=True, index=True, na_rep='NaN', formatters=None,
                   float_format=None, sparsify=None, index_names=True,
                   justify=None, line_width=None, max_rows=None, max_cols=None,
@@ -1405,11 +1405,6 @@ def to_string(self, buf=None, columns=None, col_space=None, colSpace=None,
         Render a DataFrame to a console-friendly tabular output.
         """
 
-        if colSpace is not None:  # pragma: no cover
-            warnings.warn("colSpace is deprecated, use col_space",
-                          FutureWarning)
-            col_space = colSpace
-
         formatter = fmt.DataFrameFormatter(self, buf=buf, columns=columns,
                                            col_space=col_space, na_rep=na_rep,
                                            formatters=formatters,