add pip to conda envs

Author: OriolAbril

conda-envs/environment-dev-py37.yml

@@ -16,6 +16,7 @@ dependencies:
 - numpy>=1.15.0,<1.22.0
 - numpydoc>=0.9
 - pandas>=0.24
+- pip
 - pre-commit>=2.8.0
 - pydata-sphinx-theme
 - pytest-cov>=2.5

conda-envs/environment-dev-py38.yml

@@ -16,6 +16,7 @@ dependencies:
 - numpy>=1.15.0,<1.22.0
 - numpydoc>=0.9
 - pandas>=0.24.0
+- pip
 - pre-commit>=2.8.0
 - pydata-sphinx-theme
 - pytest-cov>=2.5

conda-envs/environment-dev-py39.yml

@@ -16,6 +16,7 @@ dependencies:
 - numpy>=1.15.0,<1.22.0
 - numpydoc>=0.9
 - pandas
+- pip
 - pre-commit>=2.8.0
 - pydata-sphinx-theme
 - pytest-cov>=2.5