scripts/*.py: update coding style (#10761)

* convert to f string

* use a next function instead of a for-loop

* remove uneeded else statement

* use in operator instead of multi comparison

* conver to f string

* adds extra line between function defs

* revert/change to PR comment around looping

* remove uneeded loops

* revert to keep old style choice

scripts/set-alias-page.py

@@ -99,10 +99,9 @@ def get_alias_page(file):
     if not os.path.isfile(file):
         return ""
     with open(file) as f:
-        lines = f.readlines()
-    for line in lines:
-        if re.search(r"^`tldr ", line):
-            return re.search("`tldr (.+)`", line).group(1)
+        for line in f:
+            if match := re.search(r"^`tldr (.+)`", line):
+                return match[1]
     return ""