Bump py from 1.9.0 to 1.10.0 in /requirements

requirements/requirements-dev.txt

@@ -4,26 +4,50 @@
 #
 #    pip-compile --output-file=requirements/requirements-dev.txt requirements/requirements-dev.in
 #
-attrs==19.3.0             # via pytest
-click==7.1.2              # via pip-tools
-coverage==5.2             # via -r requirements/requirements-dev.in
-flake8==3.8.3             # via -r requirements/requirements-dev.in
-inotify==0.2.10           # via -r requirements/requirements.txt
-isort==5.1.4              # via -r requirements/requirements-dev.in
-mccabe==0.6.1             # via flake8
-more-itertools==8.4.0     # via pytest
-nose==1.3.7               # via -r requirements/requirements.txt, inotify
-packaging==20.4           # via pytest
-pip-tools==5.2.1          # via -r requirements/requirements-dev.in
-pluggy==0.13.1            # via pytest
-psutil==5.7.2             # via -r requirements/requirements.txt
-py==1.9.0                 # via pytest
-pycodestyle==2.6.0        # via flake8
-pyflakes==2.2.0           # via flake8
-pyparsing==2.4.7          # via packaging
-pytest==5.4.3             # via -r requirements/requirements-dev.in
-six==1.15.0               # via packaging, pip-tools
-wcwidth==0.2.5            # via pytest
+attrs==19.3.0
+    # via pytest
+click==7.1.2
+    # via pip-tools
+coverage==5.2
+    # via -r requirements-dev.in
+flake8==3.8.3
+    # via -r requirements-dev.in
+inotify==0.2.10
+    # via -r requirements.txt
+isort==5.1.4
+    # via -r requirements-dev.in
+mccabe==0.6.1
+    # via flake8
+more-itertools==8.4.0
+    # via pytest
+nose==1.3.7
+    # via
+    #   -r requirements.txt
+    #   inotify
+packaging==20.4
+    # via pytest
+pip-tools==5.2.1
+    # via -r requirements-dev.in
+pluggy==0.13.1
+    # via pytest
+psutil==5.7.2
+    # via -r requirements.txt
+py==1.10.0
+    # via pytest
+pycodestyle==2.6.0
+    # via flake8
+pyflakes==2.2.0
+    # via flake8
+pyparsing==2.4.7
+    # via packaging
+pytest==5.4.3
+    # via -r requirements-dev.in
+six==1.15.0
+    # via
+    #   packaging
+    #   pip-tools
+wcwidth==0.2.5
+    # via pytest
 
 # The following packages are considered to be unsafe in a requirements file:
 # pip