Why does company autocomplete 1000 to "and"?

Question

When writing python code in Emacs (GNU Emacs 25.1.1 x86_64-pc-linux-gnu), I use company for auto completion. Why does company autocomplete (some) numbers to keywords?

Edit: I used M-x company-diag and it tells me:

Emacs 25.1.1 (x86_64-pc-linux-gnu) of 2017-09-15 on trouble
Company 0.9.4

company-backends: (elpy-company-backend elpy-company-backend elpy-company-backend company-bbdb company-nxml company-css company-eclim company-clang         company-xcode company-cmake company-files (company-dabbrev-code company-gtags company-etags company-keywords)
                  company-oddmuse company-dabbrev)

Used backend: elpy-company-backend
Major mode: python-mode
Prefix: #("1000" 0 4
  (fontified t))

Completions:
  "and" "keyword"
  "if" "keyword"
  "in" "keyword"
  "is" "keyword"
  "not" "keyword"
  "or" "keyword"

This looks rather odd to me. I can't imagine that this is a feature of elpy-company-backend...?

Answer 1

This is an old bug. It has been resolved with this patch: https://github.com/jorgenschaefer/elpy/pull/1279