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With the latest release, pyRFC3339 allows a more flexible format. Prior
versions required an explicit T separator before the time section even
though the spec allows for a space.
Both of these are considered valid formats:
1970-01-01T00:00:02.500Z
1970-01-01 00:00:02.500Z
jsonbailey
approved these changes
Aug 29, 2025
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With the latest release, pyRFC3339 allows a more flexible format. Prior
versions required an explicit T separator before the time section even
though the spec allows for a space.
While we still support the older version of pyRFC3339, we only test against the latest version, and can safely update this invalid test.
Both of these are considered valid formats: