Drop python 3.7 (and 2.7) for recipes under dev-python/

Recipes with only 3.7 are left alone. Help with #8025.

dev-python/tqdm/tqdm-4.62.3.recipe

@@ -7,7 +7,7 @@ HOMEPAGE="https://github.com/tqdm/tqdm"
 COPYRIGHT="2015-2021 tqdm contributors"
 LICENSE="MIT
 	MPL v2.0"
-REVISION="1"
+REVISION="2"
 SOURCE_URI="$HOMEPAGE/archive/refs/tags/v$portVersion.tar.gz"
 CHECKSUM_SHA256="c6c0bace914d9e7aab60b46a83f4943e0f136e572f98ab8193f98ce9cbf4ce65"
 SOURCE_FILENAME="tqdm-$portVersion.tar.gz"
@@ -25,8 +25,8 @@ BUILD_REQUIRES="
 	haiku_devel
 	"
 
-PYTHON_PACKAGES=(python3 python38 python39)
-PYTHON_VERSIONS=(3.7 3.8 3.9)
+PYTHON_PACKAGES=(python38 python39)
+PYTHON_VERSIONS=(3.8 3.9)
 for i in "${!PYTHON_PACKAGES[@]}"; do
 	pythonPackage=${PYTHON_PACKAGES[i]}
 	pythonVersion=${PYTHON_VERSIONS[$i]}
@@ -44,14 +44,11 @@ BUILD_REQUIRES="$BUILD_REQUIRES
 BUILD_PREREQUIRES="$BUILD_PREREQUIRES
 	cmd:python$pythonVersion"
 done
-PROVIDES_python3+="
-	cmd:tqdm
-	"
 PROVIDES_python38+="
 	cmd:tqdm38
 	"
 PROVIDES_python39+="
-	cmd:tqdm39
+	cmd:tqdm
 	"
 
 export SETUPTOOLS_SCM_PRETEND_VERSION=$portVersion
@@ -73,9 +70,6 @@ INSTALL()
 		if [ "$pythonPackage" = python38 ]; then
 			mv "$binDir"/tqdm "$binDir"/tqdm38
 		fi
-		if [ "$pythonPackage" = python39 ]; then
-			mv "$binDir"/tqdm "$binDir"/tqdm39
-		fi
 
 		packageEntries  $pythonPackage \
 			$binDir \