unmet dependency py-dom-xpath >= 0.1

[danmilon]

On pip install the following error occurs.

$ pip install genemail
Downloading/unpacking genemail
  Downloading genemail-0.1.11.tar.gz (44kB): 44kB downloaded
  Running setup.py (path:/home/danmilon/Documents/dev/lexis-backend/venv/build/genemail/setup.py) egg_info for package genemail

Downloading/unpacking distribute>=0.6.24 (from genemail)
  Downloading distribute-0.7.3.zip (145kB): 145kB downloaded
  Running setup.py (path:/home/danmilon/Documents/dev/lexis-backend/venv/build/distribute/setup.py) egg_info for package distribute

Downloading/unpacking TemplateAlchemy>=0.1.20 (from genemail)
  Downloading TemplateAlchemy-0.1.20.tar.gz
  Running setup.py (path:/home/danmilon/Documents/dev/lexis-backend/venv/build/TemplateAlchemy/setup.py) egg_info for package TemplateAlchemy

    warning: no files found matching '*.txt' under directory 'docs'
    warning: no files found matching '*.rst' under directory 'docs'
Downloading/unpacking cssutils>=0.9.10b1 (from genemail)
  Downloading cssutils-1.0.zip (434kB): 434kB downloaded
  Running setup.py (path:/home/danmilon/Documents/dev/lexis-backend/venv/build/cssutils/setup.py) egg_info for package cssutils

Downloading/unpacking cssselect>=0.7.1 (from genemail)
  Downloading cssselect-0.9.1.tar.gz
  Running setup.py (path:/home/danmilon/Documents/dev/lexis-backend/venv/build/cssselect/setup.py) egg_info for package cssselect

    no previously-included directories found matching 'docs/_build'
Downloading/unpacking py-dom-xpath>=0.1 (from genemail)
  Could not find any downloads that satisfy the requirement py-dom-xpath>=0.1 (from genemail)
  Some externally hosted files were ignored (use --allow-external py-dom-xpath to allow).
Cleaning up...
No distributions at all found for py-dom-xpath>=0.1 (from genemail)
Storing debug log for failure in /home/danmilon/.pip/pip.log

$ python --version
Python 3.3.5

[grabner]

there are two issues: 1) that py-dom-xpath is not directly hosted on pypi (so you need to use the --allow-external flag), and 2) py-dom-xpath (a required dependency) currently is not py3 compatible.

you can try to push py-dom-xpath to add py3 support (http://code.google.com/p/py-dom-xpath/), but the project appears to have been dormant for the past 3 years...

perhaps a better approach would be to replace py-dom-xpath with a different xpath engine, such as lxml. lxml was not used due to how annoyingly long it takes to compile & install it - maybe there are other xpath implementations now? or maybe that is just the cost of using xpath.

replacing py-dom-xpath is currently not a priority, but any PRs would be welcomed. (please note that ensuring genemail works with py3 may be more involved than usual since there is a lot of unicode handling.)