Update Python dependencies

Author: mdmintz

requirements.txt

@@ -6,7 +6,7 @@ setuptools-scm>=4.1.2
 wheel>=0.35.1
 six==1.15.0
 nose==1.3.7
-ipdb==0.13.3
+ipdb==0.13.4
 parso==0.7.1
 jedi==0.17.2
 idna==2.10
@@ -53,9 +53,9 @@ 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"
 ipython==7.18.1;python_version>="3.7"
 colorama==0.4.3
-pathlib2>=2.3.5;python_version<"3.5"
-importlib-metadata==1.7.0
-virtualenv>=20.0.31
+pathlib2==2.3.5;python_version<"3.5"
+importlib-metadata==2.0.0
+virtualenv>=20.0.32
 pymysql==0.10.1
 coverage==5.3
 brython==3.8.10

setup.py

@@ -147,9 +147,9 @@
         'ipython==7.16.1;python_version>="3.6" and python_version<"3.7"',
         'ipython==7.18.1;python_version>="3.7"',
         'colorama==0.4.3',
-        'pathlib2>=2.3.5;python_version<"3.5"',  # Sync with "virtualenv"
-        'importlib-metadata==1.7.0',  # Must stay in sync with "virtualenv"
-        'virtualenv>=20.0.31',  # Must stay in sync with "importlib-metadata"
+        'pathlib2==2.3.5;python_version<"3.5"',  # Sync with "virtualenv"
+        'importlib-metadata==2.0.0',  # Sync with "virtualenv"
+        'virtualenv>=20.0.32',  # Sync with importlib-metadata and pathlib2
         'pymysql==0.10.1',
         'coverage==5.3',
         'brython==3.8.10',