add pytest.ini

pytest-timer doesn't seem to be working

require pytest-cov for py26

pytest.ini

@@ -0,0 +1,4 @@
+[pytest]
+python_files = tests_*.py
+testpaths = tqdm
+addopts = -v

tox.ini

@@ -26,7 +26,6 @@ allowlist_externals =
 [extra]
 deps =
     {[coverage]deps}
-    pytest-timer
     codecov
 commands =
     pytest --cov=tqdm -k "not tests_perf" -v tqdm/
@@ -52,9 +51,9 @@ allowlist_externals = {[extra]allowlist_externals}
 # no cython/numpy/pandas for py{py,py3,26,33,34}
 
 [testenv:py26]
-# no codecov and timer for py26
 deps =
     pytest
+    pytest-cov
     coverage
     coveralls==1.2.0
     codecov
@@ -80,7 +79,6 @@ deps = {[extra]deps}
 [testenv:tf-no-keras]
 deps =
     {[extra]deps}
-    pytest-timer
     tensorflow
 commands =
     pytest tqdm/tests/tests_keras.py -v
@@ -88,7 +86,6 @@ commands =
 [testenv:perf]
 deps =
     pytest
-    pytest-timer
 commands =
     pytest tqdm/tests/tests_perf.py -v