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progress: flush stderr after clearing...
progress: flush stderr after clearing On python3, ui.stderr is buffered, it seems, so we need to flush it to actually get the progress bar off the screen. This is important since ui.write() will call into progbar.clear() if it thinks there's a progress bar on the screen, with the intent that the next thing it outputs is at the beginning of the line (instead of at the end of the progress bar line). Without the flush, we buffer up the clearing of the screen, and we get some really weird/corrupt output. Differential Revision: https://phab.mercurial-scm.org/D7784
Kyle Lippincott -
r44485:4e0a6d15 stable
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cbor2
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This library provides encoding and decoding for the Concise Binary Object Representation (CBOR) (RFC 7049) serialization format.

There exists another Python CBOR implementation (cbor) which is faster on CPython due to its C extensions. On PyPy, cbor2 and cbor are almost identical in performance. The other implementation also lacks documentation and a comprehensive test suite, does not support most standard extension tags and is known to crash (segfault) when passed a cyclic structure (say, a list containing itself).