Update python requirements

Generated using pipenv:

  $ pipenv lock -r > requirements.txt
  $ pipenv lock -r -d > requirements-dev.txt

requirements-dev.txt

@@ -5,21 +5,20 @@ agate-sql==0.5.4
 agate==1.6.1
 appdirs==1.4.3
 atomicwrites==1.3.0
-attrs==19.1.0
+attrs==19.3.0
 babel==2.7.0
 backcall==0.1.0
-black==19.3b0
+black==19.10b0
 click==7.0
 csvkit==1.0.4
 dbfread==2.0.7
-decorator==4.4.0
+decorator==4.4.1
 entrypoints==0.3
 et-xmlfile==1.0.1
-flake8==3.7.8
-future==0.17.1
-importlib-metadata==0.23 ; python_version < '3.8'
+flake8==3.7.9
+future==0.18.2
 ipython-genutils==0.2.0
-ipython==7.8.0
+ipython==7.9.0
 isodate==0.6.0
 isort==4.3.21
 jdcal==1.4.1
@@ -27,31 +26,33 @@ jedi==0.15.1
 leather==0.3.3
 mccabe==0.6.1
 more-itertools==7.2.0
-openpyxl==3.0.0
+openpyxl==3.0.1
 packaging==19.2
 parsedatetime==2.4
 parso==0.5.1
+pathspec==0.6.0
 pexpect==4.7.0 ; sys_platform != 'win32'
 pickleshare==0.7.5
 pluggy==0.13.0
-prompt-toolkit==2.0.9
+prompt-toolkit==2.0.10
 ptyprocess==0.6.0
 py==1.8.0
 pycodestyle==2.5.0
 pyflakes==2.1.1
 pygments==2.4.2
-pyparsing==2.4.2
+pyparsing==2.4.5
 pytest-clarity==0.2.0a1
-pytest==5.1.3
-python-slugify==3.0.4
+pytest==5.2.2
+python-slugify==4.0.0
 pytimeparse==1.1.8
-pytz==2019.2
-six==1.12.0
-sqlalchemy==1.3.8
+pytz==2019.3
+regex==2019.11.1
+six==1.13.0
+sqlalchemy==1.3.11
 termcolor==1.1.0
 text-unidecode==1.3
 toml==0.10.0
-traitlets==4.3.3.dev0
+traitlets==4.3.3
+typed-ast==1.4.0
 wcwidth==0.1.7
 xlrd==1.2.0
-zipp==0.6.0

requirements.txt

@@ -4,14 +4,14 @@ certifi==2019.9.11
 chardet==3.0.4
 idna==2.8
 langid==1.1.6
-numpy==1.17.2
-pandas==0.25.1
+numpy==1.17.4
+pandas==0.25.3
 pycountry==19.8.18
-python-dateutil==2.8.0
-python-stdnum==1.11
-pytz==2019.2
+python-dateutil==2.8.1
+python-stdnum==1.12
+pytz==2019.3
 requests-cache==0.5.2
 requests==2.22.0
-six==1.12.0
-urllib3==1.25.6
+six==1.13.0
+urllib3==1.25.7
 xlrd==1.2.0