[Kayvan-Zahiri]

Problem

Files.new_data_source() passes the time.time function, rather than its return value, to DataSourceErrorInfo when reading a file or initializing the feature store fails. Through LDClient.data_source_status_provider.status.error.time, applications therefore receive a callable where the documented API promises a Unix timestamp. Formatting, comparing or serializing that timestamp fails.

Change

Call time.time() in both error paths. Add three public-client regressions using an actual missing file, malformed file and a feature store that raises on initialization. Each verifies the error kind and a numeric timestamp within the operation's time window. All three fail on the original implementation and pass with the fix.

This is the synchronous legacy Files integration; there is no async sibling for this class. The FDv2 file source has separate error construction and is unchanged.

Validation

• File-source suites:31 passed.
• Full prescribed non-database suite on Python3.12:1773 passed,367 skipped,16 warnings. No hosted SDK credentials supplied.
• Official v2.41.0 contract harness:sync4741 ran/19 skipped;async4738 ran/20 skipped;both passed.
• Mypy231 source files,isort,pycodestyle and diff whitespace checks pass.
• Wheel and sdist build successfully.