Merge pull request plotly#2838 from plotly/plotlyjs-v1.57.0-compat

Make plotly.py's validator compatible with plotly.js 1.57.0 which now allows domain referenced axis references

Author: nicholas-esterer

packages/python/plotly/_plotly_utils/basevalidators.py

@@ -477,7 +477,9 @@ def build_regex_replacement(regex_str):
         #
         # To be cautious, we only perform this conversion for enumerated
         # values that match the anchor-style regex
-        match = re.match(r"\^(\w)\(\[2\-9\]\|\[1\-9\]\[0\-9\]\+\)\?\$", regex_str)
+        match = re.match(
+            r"\^(\w)\(\[2\-9\]\|\[1\-9\]\[0\-9\]\+\)\?\( domain\)\?\$", regex_str
+        )
 
         if match:
             anchor_char = match.group(1)

packages/python/plotly/optional-requirements.txt

@@ -25,7 +25,7 @@ psutil
 
 ## code formatting
 pre-commit
-black
+black==19.10b0
 
 ## codegen dependencies ##
 inflect