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Date: Sun, 20 Sep 2020 18:31:17 +0200
From: "Krzysztof Kozlowski" <krzk@kernel.org>
To: tools@linux.kernel.org
Subject: b4 diff -m: max() arg is an empty sequence
Message-ID: <20200920163117.GA15084@kozik-lap>
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Hi,

$ b4 mbox '1600234622-8815-2-git-send-email-yilun.xu@intel.com'
$ b4 mbox '1599553645-26928-1-git-send-email-yilun.xu@intel.com'

(the second mbox is actually a cover letter as b4 could not download the
actual patch directly via its Message-Id)

$ b4 diff -m 1599553645-26928-1-git-send-email-yilun.xu@intel.com.mbx 1600234622-8815-2-git-send-email-yilun.xu@intel.com.mbx

Loading 8 messages from 1599553645-26928-1-git-send-email-yilun.xu@intel.com.mbx
Traceback (most recent call last):
  File "/home/kozik/.local/bin/b4", line 11, in <module>
    sys.exit(cmd())
  File "/home/kozik/.local/lib/python3.6/site-packages/b4/command.py", line 222, in cmd
    cmdargs.func(cmdargs)
  File "/home/kozik/.local/lib/python3.6/site-packages/b4/command.py", line 65, in cmd_diff
    b4.diff.main(cmdargs)
  File "/home/kozik/.local/lib/python3.6/site-packages/b4/diff.py", line 115, in main
    lser, user = diff_mboxes(cmdargs)
  File "/home/kozik/.local/lib/python3.6/site-packages/b4/diff.py", line 108, in diff_mboxes
    chunks.append(lmbx.series[max(lmbx.series.keys())])
ValueError: max() arg is an empty sequence


Ubuntu 18.04.5
Python 3.6.9
b4 0.5.2

Best regards,
Krzysztof