CI: Set pytest minversion to 4.0.2

ci/deps/azure-27-compat.yaml

@@ -18,7 +18,7 @@ dependencies:
   - xlsxwriter=0.5.2
   - xlwt=0.7.5
   # universal
-  - pytest
+  - pytest>=4.0.2
   - pytest-xdist
   - pytest-mock
   - isort

ci/deps/azure-27-locale.yaml

@@ -20,7 +20,7 @@ dependencies:
   - xlsxwriter=0.5.2
   - xlwt=0.7.5
   # universal
-  - pytest
+  - pytest>=4.0.2
   - pytest-xdist
   - pytest-mock
   - hypothesis>=3.58.0

ci/deps/azure-36-locale_slow.yaml

@@ -26,7 +26,7 @@ dependencies:
   - xlsxwriter
   - xlwt
   # universal
-  - pytest
+  - pytest>=4.0.2
   - pytest-xdist
   - pytest-mock
   - moto

ci/deps/azure-37-locale.yaml

@@ -25,7 +25,7 @@ dependencies:
   - xlsxwriter
   - xlwt
   # universal
-  - pytest
+  - pytest>=4.0.2
   - pytest-xdist
   - pytest-mock
   - isort

ci/deps/azure-37-numpydev.yaml

@@ -6,7 +6,7 @@ dependencies:
   - pytz
   - Cython>=0.28.2
   # universal
-  - pytest
+  - pytest>=4.0.2
   - pytest-xdist
   - pytest-mock
   - hypothesis>=3.58.0

ci/deps/azure-macos-35.yaml

@@ -21,11 +21,11 @@ dependencies:
   - xlrd
   - xlsxwriter
   - xlwt
-  # universal
-  - pytest
-  - pytest-xdist
-  - pytest-mock
   - isort
   - pip:
     - python-dateutil==2.5.3
+    # universal
+    - pytest>=4.0.2
+    - pytest-xdist
+    - pytest-mock
     - hypothesis>=3.58.0

ci/deps/azure-windows-27.yaml

@@ -25,7 +25,7 @@ dependencies:
   - xlwt
   # universal
   - cython>=0.28.2
-  - pytest
+  - pytest>=4.0.2
   - pytest-xdist
   - pytest-mock
   - moto

ci/deps/azure-windows-36.yaml

@@ -23,7 +23,7 @@ dependencies:
   - xlwt
   # universal
   - cython>=0.28.2
-  - pytest
+  - pytest>=4.0.2
   - pytest-xdist
   - pytest-mock
   - hypothesis>=3.58.0

ci/deps/travis-27.yaml

@@ -39,7 +39,7 @@ dependencies:
   - xlsxwriter=0.5.2
   - xlwt=0.7.5
   # universal
-  - pytest
+  - pytest>=4.0.2
   - pytest-xdist
   - pytest-mock
   - moto==1.3.4

ci/deps/travis-36-doc.yaml

@@ -41,6 +41,6 @@ dependencies:
   - xlsxwriter
   - xlwt
   # universal
-  - pytest
+  - pytest>=4.0.2
   - pytest-xdist
   - isort

ci/deps/travis-36-locale.yaml

@@ -28,7 +28,7 @@ dependencies:
   - xlsxwriter
   - xlwt
   # universal
-  - pytest
+  - pytest>=4.0.2
   - pytest-xdist
   - pytest-mock
   - moto

ci/deps/travis-36-slow.yaml

@@ -25,7 +25,7 @@ dependencies:
   - xlsxwriter
   - xlwt
   # universal
-  - pytest
+  - pytest>=4.0.2
   - pytest-xdist
   - pytest-mock
   - moto

ci/deps/travis-36.yaml

@@ -33,7 +33,7 @@ dependencies:
   - xlsxwriter
   - xlwt
   # universal
-  - pytest
+  - pytest>=4.0.2
   - pytest-xdist
   - pytest-cov
   - pytest-mock

ci/deps/travis-37.yaml

@@ -12,7 +12,7 @@ dependencies:
   - nomkl
   - pyarrow
   - pytz
-  - pytest
+  - pytest>=4.0.2
   - pytest-xdist
   - pytest-mock
   - hypothesis>=3.58.0

doc/source/development/contributing.rst

@@ -731,7 +731,7 @@ extensions in `numpy.testing
 
 .. note::
 
-   The earliest supported pytest version is 3.6.0.
+   The earliest supported pytest version is 4.0.2.
 
 Writing tests
 ~~~~~~~~~~~~~

doc/source/install.rst

@@ -202,7 +202,7 @@ pandas is equipped with an exhaustive set of unit tests, covering about 97% of
 the code base as of this writing. To run it on your machine to verify that
 everything is working (and that you have all of the dependencies, soft and hard,
 installed), make sure you have `pytest
-<http://docs.pytest.org/en/latest/>`__ >= 3.6 and `Hypothesis
+<http://docs.pytest.org/en/latest/>`__ >= 4.0.2 and `Hypothesis
 <https://hypothesis.readthedocs.io/>`__ >= 3.58, then run:
 
 ::

doc/source/whatsnew/v0.25.0.rst

@@ -63,6 +63,20 @@ is respected in indexing. (:issue:`24076`, :issue:`16785`)
     df = pd.DataFrame([0], index=pd.DatetimeIndex(['2019-01-01'], tz='US/Pacific'))
     df['2019-01-01 12:00:00+04:00':'2019-01-01 13:00:00+04:00']
 
+.. _whatsnew_0250.api_breaking.deps:
+
+Increased minimum versions for dependencies
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+We have updated our minimum supported versions of dependencies (:issue:`23519`).
+If installed, we now require:
+
++-----------------+-----------------+----------+
+| Package         | Minimum Version | Required |
++=================+=================+==========+
+| pytest (dev)    | 4.0.2           |          |
++-----------------+-----------------+----------+
+
 .. _whatsnew_0250.api.other:
 
 Other API Changes

environment.yml

@@ -19,7 +19,7 @@ dependencies:
   - hypothesis>=3.82
   - isort
   - moto
-  - pytest>=4.0
+  - pytest>=4.0.2
   - pytest-mock
   - sphinx
   - numpydoc

pandas/util/_tester.py

@@ -11,7 +11,7 @@ def test(extra_args=None):
     try:
         import pytest
     except ImportError:
-        raise ImportError("Need pytest>=3.0 to run tests")
+        raise ImportError("Need pytest>=4.0.2 to run tests")
     try:
         import hypothesis  # noqa
     except ImportError:

requirements-dev.txt

@@ -10,7 +10,7 @@ gitpython
 hypothesis>=3.82
 isort
 moto
-pytest>=4.0
+pytest>=4.0.2
 pytest-mock
 sphinx
 numpydoc

setup.cfg

@@ -57,6 +57,7 @@ split_penalty_after_opening_bracket = 1000000
 split_penalty_logical_operator = 30
 
 [tool:pytest]
+minversion = 4.0.2
 testpaths = pandas
 markers =
     single: mark a test as single cpu only