Remove icalendar pin for unsupported Python 3.7.

Update constraints scripts to not handle Python 3.7.

release/combine-constraints.py

@@ -28,27 +28,23 @@ def parse_file(filename):
 
 
 constraints = os.path.join(directory, "constraints.txt")
-constraints37 = os.path.join(directory, "constraints37.txt")
 constraints38 = os.path.join(directory, "constraints38.txt")
 constraints39 = os.path.join(directory, "constraints39.txt")
 constraints310 = os.path.join(directory, "constraints310.txt")
-for filename in (constraints37, constraints38, constraints39, constraints310):
+for filename in (constraints38, constraints39, constraints310):
     if not os.path.exists(filename):
         print(f"ERROR: {filename} does not exist.")
         print(
-            "Run: tox -p auto -e constraints2,constraints37,constraints38,constraints39,constraints310,constraints"
+            "Run: tox -p auto -e constraints2,constraints38,constraints39,constraints310,constraints"
         )
         sys.exit(1)
 
-c37 = parse_file(constraints37)
 c38 = parse_file(constraints38)
 c39 = parse_file(constraints39)
 c310 = parse_file(constraints310)
 
 # Gather them all in one dictionary.
 pins = defaultdict(dict)
-for package, version in c37.items():
-    pins[package][37] = version
 for package, version in c38.items():
     pins[package][38] = version
 for package, version in c39.items():
@@ -59,20 +55,15 @@ def parse_file(filename):
 # Combine them.
 combi = []
 for package, versions in pins.items():
-    py37_version = versions.pop(37, None)
     py38_version = versions.pop(38, None)
     py39_version = versions.pop(39, None)
     py310_version = versions.pop(310, None)
-    if py37_version == py38_version == py39_version == py310_version:
+    if py38_version == py39_version == py310_version:
         # All versions are the same.
-        combi.append(f"{package}=={py37_version}")
+        combi.append(f"{package}=={py310_version}")
         continue
     # Some versions are different or missing.
     # Start with the lowest Python.
-    if py37_version is not None:
-        combi.append(f'{package}=={py37_version}; python_version == "3.7"')
-    if not (py38_version or py39_version or py310_version):
-        continue
     if py38_version == py39_version == py310_version:
         # All higher Python versions are the same.
         combi.append(f'{package}=={py38_version}; python_version >= "3.8"')

release/constraints.txt

@@ -114,8 +114,7 @@ gunicorn==20.1.0
 h11==0.13.0
 httplib2==0.20.4
 i18ndude==5.5.0
-icalendar==4.1.0; python_version == "3.7"
-icalendar==5.0.0a1; python_version >= "3.8"
+icalendar==5.0.0a1
 idna==3.3
 imagesize==1.3.0
 importlib-metadata==4.12.0

release/tox.ini

@@ -1,6 +1,5 @@
 [tox]
 envlist =
-    constraints37,
     constraints38,
     constraints39,
     constraints310,
@@ -12,10 +11,6 @@ basepython = python3
 skip_install = true
 commands_pre = python -m pip install -r {toxinidir}/../requirements.txt
 
-[testenv:constraints37]
-basepython = python3.7
-commands = python create-constraints.py {toxinidir}/../ecosystem.cfg {toxinidir}/constraints37.txt
-
 [testenv:constraints38]
 basepython = python3.8
 commands = python create-constraints.py {toxinidir}/../ecosystem.cfg {toxinidir}/constraints38.txt
@@ -31,7 +26,7 @@ commands = python create-constraints.py {toxinidir}/../ecosystem.cfg {toxinidir}
 [testenv:constraints]
 basepython = python3
 # Specifying other tox envs as dependencies helps when running in parallel.
-depends = constraints37, constraints38, constraints39, constraints310
+depends = constraints38, constraints39, constraints310
 commands_pre =
 commands = python combine-constraints.py {toxinidir}
 

sources.cfg

@@ -42,7 +42,6 @@ five.customerize                    = git ${remotes:zope}/five.customerize.git p
 five.intid                          = git ${remotes:plone}/five.intid.git pushurl=${remotes:plone_push}/five.intid.git branch=master
 five.pt                             = git ${remotes:zope}/five.pt.git pushurl=${remotes:zope_push}/five.pt.git branch=master
 i18ndude                            = git ${remotes:collective}/i18ndude.git pushurl=${remotes:collective_push}/i18ndude.git branch=master
-# Note: on Python 3.7 you should use icalendar branch 4.x.
 icalendar                           = git ${remotes:collective}/icalendar.git pushurl=${remotes:collective_push}/icalendar.git branch=master
 Plone                               = git ${remotes:plone}/Plone.git pushurl=${remotes:plone_push}/Plone.git branch=master
 plone.alterego                      = git ${remotes:plone}/plone.alterego.git pushurl=${remotes:plone_push}/plone.alterego.git branch=master

versions.cfg

@@ -225,9 +225,6 @@ wsproto = 1.1.0
 wrapt = 1.14.1
 zipp = 3.8.1
 
-[versions:python37]
-icalendar = 4.1.0
-
 [versionannotations]
 # keep this alphabetical please
 prompt-toolkit =