Backport PR #45483: Rename to main (#45542)

Co-authored-by: Jarrod Millman <jarrod.millman@gmail.com>

Author: meeseeksmachine

doc/source/getting_started/comparison/comparison_with_sql.rst

@@ -18,7 +18,7 @@ structure.
 
     url = (
         "https://raw.github.com/pandas-dev"
-        "/pandas/master/pandas/tests/io/data/csv/tips.csv"
+        "/pandas/main/pandas/tests/io/data/csv/tips.csv"
     )
     tips = pd.read_csv(url)
     tips

pandas/_version.py

@@ -199,7 +199,7 @@ def git_versions_from_keywords(keywords, tag_prefix, verbose):
         # refs/heads/ and refs/tags/ prefixes that would let us distinguish
         # between branches and tags. By ignoring refnames without digits, we
         # filter out many common branch names like "release" and
-        # "stabilization", as well as "HEAD" and "master".
+        # "stabilization", as well as "HEAD" and "main".
         tags = {r for r in refs if re.search(r"\d", r)}
         if verbose:
             print("discarding '%s', no digits" % ",".join(refs - tags))

pandas/tests/io/test_html.py

@@ -171,7 +171,7 @@ def test_banklist_url(self):
     @tm.network
     def test_spam_url(self):
         url = (
-            "https://raw.githubusercontent.com/pandas-dev/pandas/master/"
+            "https://raw.githubusercontent.com/pandas-dev/pandas/main/"
             "pandas/tests/io/data/html/spam.html"
         )
         df1 = self.read_html(url, match=".*Water.*")