Do you have python-pocket-lint 1.4.2 installed? I expect you would since the package is in the same PPA, but maybe the packing rules are not clear.
$ dpkg -s python-pocket-lint
...
Version: 1.4.2+503-0~gdp~saucy1
...
Well, I can see that it is a little ambiguous since python-pocket-lint is both py3 and py2. This command can verify that pocket
$ python3 -m pocketlint.formatcheck --help
Do you have python-pocket-lint 1.4.2 installed? I expect you would since the package is in the same PPA, but maybe the packing rules are not clear. 0~gdp~saucy1
$ dpkg -s python-pocket-lint
...
Version: 1.4.2+503-
...
Well, I can see that it is a little ambiguous since python-pocket-lint is both py3 and py2. This command can verify that pocket formatcheck --help
$ python3 -m pocketlint.