2021 october edition - update materials

Author: jorisvandenbossche

.gitignore

@@ -131,8 +131,6 @@ dmypy.json
 # custom repo information
 westerschelde/
 etna_*/
-herstappe/
-averbode/
 draft/
 other/
 20200302_preps_gig_python.md

check_environment.py

@@ -49,16 +49,16 @@ def import_version(pkg, min_ver, fail_msg=""):
 print(sys.version)
 pyversion = Version(sys.version)
 if pyversion >= "3":
-    if pyversion < "3.6":
-        print(FAIL, "Python version 3.6 is required,"
+    if pyversion < "3.7":
+        print(FAIL, "Python version 3.7 is required,"
                     " but %s is installed." % sys.version)
 else:
     print(FAIL, "Python 3 is required, but %s is installed." % sys.version)
 
 print()
 requirements = {'numpy': "1.9", 'matplotlib': "2.0",
                 'pandas': "1.1", 'xarray': '0.16',
-                'geopandas': '0.8', 'rasterio': '1.1',
+                'geopandas': '0.9', 'rasterio': '1.1',
                 'owslib': '0.19', 'fsspec': '0.8',
                 's3fs': '0.3', 'pyproj': '2.4'}