Clarify when mran raises valueerror
MODIFY
repo2docker/buildpacks/r.py
repo2docker/buildpacks/r.py
@@ -217,7 +217,6 @@ class RBuildPack(PythonBuildPack):
r = requests.head(url)
if r.ok:
return url
- else:
raise ValueError(
"No snapshot found for {} or {} days prior in mran.microsoft.com".format(
snapshot_date.strftime("%Y-%m-%d"), max_days_prior

Clarify when mran raises valueerror