DEPS: update setuptools min version

doc/source/development/contributing_environment.rst

@@ -189,9 +189,8 @@ Creating a Python environment (pip)
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 If you aren't using conda for your development environment, follow these instructions.
-You'll need to have at least the :ref:`minimum Python version <install.version>` that pandas supports. If your Python version
-is 3.8.0 (or later), you might need to update your ``setuptools`` to version 42.0.0 (or later)
-in your development environment before installing the build dependencies::
+You'll need to have at least the :ref:`minimum Python version <install.version>` that pandas supports.
+In your development environment before installing the build dependencies::
 
  pip install --upgrade setuptools
 

doc/source/getting_started/install.rst

@@ -262,7 +262,7 @@ Visualization
 ========================= ================== =============================================================
 Dependency Minimum Version Notes
 ========================= ================== =============================================================
-setuptools 38.6.0 Utils for entry points of plotting backend
+setuptools 51.0.0 Utils for entry points of plotting backend
 matplotlib 2.2.3 Plotting library
 Jinja2 2.10 Conditional formatting with DataFrame.style
 tabulate 0.8.7 Printing in Markdown-friendly format (see `tabulate`_)

doc/source/whatsnew/v1.3.0.rst

@@ -645,7 +645,7 @@ If installed, we now require:
 +-----------------+-----------------+----------+---------+
 | mypy (dev) | 0.812 | | X |
 +-----------------+-----------------+----------+---------+
-| setuptools | 38.6.0 | | X |
+| setuptools | 51.0.0 | | X |
 +-----------------+-----------------+----------+---------+
 
 For `optional libraries <https://pandas.pydata.org/docs/getting_started/install.html>`_ the general recommendation is to use the latest version.

pyproject.toml

@@ -2,7 +2,7 @@
 # Minimum requirements for the build system to execute.
 # See https://github.com/scipy/scipy/pull/12940 for the AIX issue.
 requires = [
- "setuptools>=38.6.0",
+ "setuptools>=51.0.0",
  "wheel",
  "Cython>=0.29.21,<3", # Note: sync with setup.py
  # Numpy requirements for different OS/architectures