misc: change pyupgrade target version to 3.9 (#75442)

.pre-commit-config.yaml

@@ -2,10 +2,10 @@
 # See https://pre-commit.com/hooks.html for more hooks
 repos:
 -   repo: https://github.com/asottile/pyupgrade
-    rev: v3.1.0
+    rev: v3.3.1
     hooks:
     - id: pyupgrade
-      args: ['--keep-percent-format', '--py37-plus']
+      args: ['--keep-percent-format', '--py39-plus']
 -   repo: https://github.com/adamchainz/django-upgrade
     rev: 1.13.0
     hooks:

passerelle/apps/csvdatasource/models.py

@@ -19,7 +19,6 @@ import datetime
 import mimetypes
 import os
 import re
-import sys
 import tempfile
 from collections import OrderedDict
 
@@ -53,22 +52,21 @@ code_cache = OrderedDict()
 
 
 # Need for compatibility between xlrd==1.2.0 and python>3.7
-if sys.version_info >= (3, 8):
-    try:
-        import xlrd.xlsx
-    except ImportError:
-        pass
-    else:
-        if hasattr(xlrd.xlsx, 'ensure_elementtree_imported'):
-            old_ensure_elementtree_imported = xlrd.xlsx.ensure_elementtree_imported
+try:
+    import xlrd.xlsx
+except ImportError:
+    pass
+else:
+    if hasattr(xlrd.xlsx, 'ensure_elementtree_imported'):
+        old_ensure_elementtree_imported = xlrd.xlsx.ensure_elementtree_imported
 
-            def ensure_elementtree_imported(*args, **kwargs):
-                try:
-                    return old_ensure_elementtree_imported(*args, **kwargs)
-                finally:
-                    xlrd.xlsx.Element_has_iter = True
+        def ensure_elementtree_imported(*args, **kwargs):
+            try:
+                return old_ensure_elementtree_imported(*args, **kwargs)
+            finally:
+                xlrd.xlsx.Element_has_iter = True
 
-            xlrd.xlsx.ensure_elementtree_imported = ensure_elementtree_imported
+        xlrd.xlsx.ensure_elementtree_imported = ensure_elementtree_imported
 
 
 def get_code(expr):