BUG: info raising when use_numba is set (#52077)

Author: phofl

doc/source/whatsnew/v2.1.0.rst

@@ -162,6 +162,7 @@ Numeric
 Conversion
 ^^^^^^^^^^
 - Bug in :meth:`ArrowDtype.numpy_dtype` returning nanosecond units for non-nanosecond ``pyarrow.timestamp`` and ``pyarrow.duration`` types (:issue:`51800`)
+- Bug in :meth:`DataFrame.info` raising  ``ValueError`` when ``use_numba`` is set (:issue:`51922`)
 -
 
 Strings

pandas/io/formats/info.py

@@ -14,6 +14,8 @@
     Sequence,
 )
 
+import numpy as np
+
 from pandas._config import get_option
 
 from pandas.io.formats import format as fmt
@@ -1097,4 +1099,4 @@ def _get_dataframe_dtype_counts(df: DataFrame) -> Mapping[str, int]:
     Create mapping between datatypes and their number of occurrences.
     """
     # groupby dtype.name to collect e.g. Categorical columns
-    return df.dtypes.value_counts().groupby(lambda x: x.name).sum()
+    return df.dtypes.value_counts().groupby(lambda x: x.name).sum().astype(np.intp)

pandas/tests/io/formats/test_info.py

@@ -11,6 +11,7 @@
     IS64,
     PYPY,
 )
+import pandas.util._test_decorators as td
 
 from pandas import (
     CategoricalIndex,
@@ -501,3 +502,19 @@ def test_memory_usage_empty_no_warning():
         result = df.memory_usage()
     expected = Series(16 if IS64 else 8, index=["Index"])
     tm.assert_series_equal(result, expected)
+
+
+@td.skip_if_no("numba")
+def test_info_compute_numba():
+    # GH#51922
+    df = DataFrame([[1, 2], [3, 4]])
+
+    with option_context("compute.use_numba", True):
+        buf = StringIO()
+        df.info()
+        result = buf.getvalue()
+
+    buf = StringIO()
+    df.info()
+    expected = buf.getvalue()
+    assert result == expected