Update Python dependencies

Author: mdmintz

requirements.txt

@@ -3,7 +3,7 @@ pip>=21.0.1;python_version>="3.6"
 packaging>=20.9
 setuptools>=44.1.1;python_version<"3.5"
 setuptools>=50.3.2;python_version>="3.5" and python_version<"3.6"
-setuptools>=54.1.1;python_version>="3.6"
+setuptools>=54.1.2;python_version>="3.6"
 setuptools-scm>=5.0.2
 wheel>=0.36.2
 attrs>=20.3.0
@@ -58,7 +58,7 @@ pygments==2.8.1;python_version>="3.5"
 traitlets==4.3.3;python_version<"3.7"
 traitlets==5.0.5;python_version>="3.7"
 prompt-toolkit==1.0.18;python_version<"3.6"
-prompt-toolkit==3.0.16;python_version>="3.6"
+prompt-toolkit==3.0.17;python_version>="3.6"
 ipython==5.10.0;python_version<"3.5"
 ipython==6.5.0;python_version>="3.5" and python_version<"3.6"
 ipython==7.16.1;python_version>="3.6" and python_version<"3.7"
@@ -91,8 +91,8 @@ pdfminer.six==20201018;python_version>="3.5"
 coverage==5.5
 pytest-cov==2.11.1
 flake8==3.7.9;python_version<"3.5"
-flake8==3.8.4;python_version>="3.5"
+flake8==3.9.0;python_version>="3.5"
 pyflakes==2.1.1;python_version<"3.5"
-pyflakes==2.2.0;python_version>="3.5"
+pyflakes==2.3.0;python_version>="3.5"
 pycodestyle==2.5.0;python_version<"3.5"
-pycodestyle==2.6.0;python_version>="3.5"
+pycodestyle==2.7.0;python_version>="3.5"

setup.py

@@ -37,7 +37,7 @@
         '>>> Confirm release PUBLISH to PyPI? (yes/no): ')).lower().strip()
     if reply == 'yes':
         print("\n*** Checking code health with flake8:\n")
-        os.system("python -m pip install 'flake8==3.8.4'")
+        os.system("python -m pip install 'flake8==3.9.0'")
         flake8_status = os.system("flake8 --exclude=temp")
         if flake8_status != 0:
             print("\nWARNING! Fix flake8 issues before publishing to PyPI!\n")
@@ -108,7 +108,7 @@
         'packaging>=20.9',
         'setuptools>=44.1.1;python_version<"3.5"',
         'setuptools>=50.3.2;python_version>="3.5" and python_version<"3.6"',
-        'setuptools>=54.1.1;python_version>="3.6"',
+        'setuptools>=54.1.2;python_version>="3.6"',
         'setuptools-scm>=5.0.2',
         'wheel>=0.36.2',
         'attrs>=20.3.0',
@@ -163,7 +163,7 @@
         'traitlets==4.3.3;python_version<"3.7"',
         'traitlets==5.0.5;python_version>="3.7"',
         'prompt-toolkit==1.0.18;python_version<"3.6"',
-        'prompt-toolkit==3.0.16;python_version>="3.6"',
+        'prompt-toolkit==3.0.17;python_version>="3.6"',
         'ipython==5.10.0;python_version<"3.5"',
         'ipython==6.5.0;python_version>="3.5" and python_version<"3.6"',
         'ipython==7.16.1;python_version>="3.6" and python_version<"3.7"',
@@ -199,11 +199,11 @@
         # pip install -e .[flake]
         'flake': [
             'flake8==3.7.9;python_version<"3.5"',
-            'flake8==3.8.4;python_version>="3.5"',
+            'flake8==3.9.0;python_version>="3.5"',
             'pyflakes==2.1.1;python_version<"3.5"',
-            'pyflakes==2.2.0;python_version>="3.5"',
+            'pyflakes==2.3.0;python_version>="3.5"',
             'pycodestyle==2.5.0;python_version<"3.5"',
-            'pycodestyle==2.6.0;python_version>="3.5"',
+            'pycodestyle==2.7.0;python_version>="3.5"',
         ],
     },
     packages=[