Support for --import xml.etree.ElementTree

[simonw]

https://github.com/simonw/neededge-history/blob/main/v1.xml

This should work, but doesn't without a small change:

git-history file neededge.db v1.xml --id url --convert '
tree = xml.etree.ElementTree.fromstring(content)
return [site.attrib for site in tree.iter("site")]
' --import xml.etree.ElementTree

Originally posted by @simonw in #30 (comment)

[simonw]

Here's the fix that worked:

@@ -463,7 +473,7 @@ def compile_convert(convert, imports):
     locals = {}
     globals = {"json": json}
     for import_ in imports:
-        globals[import_] = __import__(import_)
+        globals[import_.split(".")[0]] = __import__(import_)
     exec(code_o, globals, locals)

[simonw]

Example in docs here: https://github.com/simonw/git-history/blob/44f604c878e59b1455807929972df1c89816ac45/README.md#custom-conversions-using---convert