py27-scikits-statsmodels depends on py27-pandas, but port has no such dependency

[stefan.walk@…]

Leads to an error while upgrading/installing if pandas is not installed, with

:info:build Traceback (most recent call last): :info:build File "setup.py", line 195, in <module> :info:build check_dependency_versions(min_versions) :info:build File "setup.py", line 47, in check_dependency_versions :info:build raise ImportError("statsmodels requires pandas") :info:build ImportError: statsmodels requires pandas

in the log file.

[cdeil (Christoph Deil)]

Cc Me!

[cdeil (Christoph Deil)]

For me the upgrade to statsmodels 0.4 also failed because of the missing pandas dependency.

Because statsmodels is a dependency of pandas, I can't install pandas at all, because Macports wants to install statsmodels first:

$ port installed '*pandas*'
None of the specified ports are installed.
$ sudo port install py27-pandas
--->  Computing dependencies for py27-scikits-statsmodels
--->  Building py27-scikits-statsmodels
Error: Target org.macports.build returned: shell command failed (see log for details)
Log for py27-scikits-statsmodels is at: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_python_py-scikits-statsmodels/py27-scikits-statsmodels/main.log
Error: Unable to upgrade port: 1
Error: Unable to execute port: upgrade py27-scikits-statsmodels failed

I guess the right way to resolve this circular dependency is to make pandas a required dependency of statsmodels, but statsmodels an optional dependency (a variant) for pandas?

[cdeil (Christoph Deil)]

Please note ticket #34258 for pandas, where I mention the circular dependency problem and ask if python 3 versions could be added.

It would be very nice if python 3 versions could also be added for statsmodels. The statsmodels 0.4 release notes mention "full python 3 support":

​https://github.com/statsmodels/statsmodels/blob/master/CHANGES.txt#L19

[stromnov (Andrey Stromnov)]

Thanks!

Committed in r92562.