Couldn't find chunk error when running coverage html

Issue #612 invalid
Andrew Dejonge created an issue

I'm new to the coverage library for python. But I've immediately encountered a problem and I can't find mention of it on google..

In my virtual environment (pipenv) I do:

pipenv install coverage==3.6
coverage run test <app-name>
coverage report
coverage html

All of them work nicely, I get a nice text report in my shell, but when I run coverage html it crashes...

Traceback (most recent call last):
  File "c:\users\win7\.virtualenvs\app-87mb2pst\lib\site-packages\coverage\", line 571, in _arcs
    ch = byte_chunks[byte]
KeyError: 22318

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "d:\programming\Lib\", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "d:\programming\Lib\", line 85, in _run_code
    exec(code, run_globals)
  File "C:\Users\Win7\.virtualenvs\app-87mb2psT\Scripts\coverage.exe\", line 9, in <module>
  File "c:\users\win7\.virtualenvs\app-87mb2pst\lib\site-packages\coverage\", line 710, in main
    status = CoverageScript().command_line(argv)
  File "c:\users\win7\.virtualenvs\app-87mb2pst\lib\site-packages\coverage\", line 452, in command_line
  File "c:\users\win7\.virtualenvs\app-87mb2pst\lib\site-packages\coverage\", line 615, in html_report
  File "c:\users\win7\.virtualenvs\app-87mb2pst\lib\site-packages\coverage\", line 90, in report
    self.report_files(self.html_file, morfs, self.config.html_dir)
  File "c:\users\win7\.virtualenvs\app-87mb2pst\lib\site-packages\coverage\", line 84, in report_files
    report_fn(cu, self.coverage._analyze(cu))
  File "c:\users\win7\.virtualenvs\app-87mb2pst\lib\site-packages\coverage\", line 164, in html_file
    missing_branch_arcs = analysis.missing_branch_arcs()
  File "c:\users\win7\.virtualenvs\app-87mb2pst\lib\site-packages\coverage\", line 127, in missing_branch_arcs
    missing = self.arcs_missing()
  File "c:\users\win7\.virtualenvs\app-87mb2pst\lib\site-packages\coverage\", line 88, in arcs_missing
    possible = self.arc_possibilities()
  File "c:\users\win7\.virtualenvs\app-87mb2pst\lib\site-packages\coverage\", line 76, in arc_possibilities
    arcs = self.parser.arcs()
  File "c:\users\win7\.virtualenvs\app-87mb2pst\lib\site-packages\coverage\", line 73, in _wrapped
    setattr(self, attr, fn(self))
  File "c:\users\win7\.virtualenvs\app-87mb2pst\lib\site-packages\coverage\", line 230, in arcs
    for l1, l2 in self.byte_parser._all_arcs():
  File "c:\users\win7\.virtualenvs\app-87mb2pst\lib\site-packages\coverage\", line 631, in _all_arcs
  File "c:\users\win7\.virtualenvs\app-87mb2pst\lib\site-packages\coverage\", line 578, in _arcs

    raise Exception("Couldn't find chunk @ %d" % byte)
Exception: Couldn't find chunk @ 22318

Comments (2)

  1. Ned Batchelder repo owner

    Version 3.6 was released 4.5 years ago, and we've closed nearly 150 issues since then. Use the latest version, 4.4.1.

  2. Log in to comment