#2436: "tahoe --version" shouldn't show scary diagnostic warnings
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Reporter: warner | Owner:
Type: defect | Status: new
Priority: normal | Milestone: 1.10.1
Component: code | Version: 1.10.0
Keywords: | Launchpad Bug:
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It is very common for `tahoe --version` to report diagnostics warnings
about the difference between what `pkg_resources` claims to provide, and
what the actual imported modules (and their `__version__`) reports. These
warnings have convinced several users that their tahoe installation has
failed, when in fact everything will would work normally apart from those
warnings.
Zooko and I agreed on IRC to change `tahoe --version` to report the
versions of Tahoe itself and its dependencies (foolscap, pycryptopp, etc),
but to remove the import-vs-pkg_resources warnings. We'll add a separate
`tahoe debug versions` command that emits complete diagnostics.
For reference, this is what the problematic output looks like:
{{{
% bin/tahoe -V
allmydata-tahoe: 1.10.0
foolscap: 0.8.0
pycryptopp: 0.6.0.1206569328141510525648634803928199668821045408958
zfec: 1.4.24
Twisted: 13.0.0
Nevow: 0.11.1
zope.interface: unknown
python: 2.7.9
platform: Linux-fedora_22-x86_64-64bit_ELF
pyOpenSSL: 0.14
simplejson: 3.7.2
pycrypto: 2.6.1
pyasn1: 0.1.7
mock: 1.0.1
setuptools: 0.6c16dev4
Warning: dependency 'pycparser' (version '2.10') found by pkg_resources
not found by import.
Warning: dependency 'six' (version '1.9.0') found by pkg_resources not
found by import.
Warning: dependency 'cryptography' (version '0.8.2') found by
pkg_resources not found by import.
Warning: dependency 'cffi' (version '0.8.6') found by pkg_resources not
found by import.
Warning: dependency 'pyasn1-modules' (version '0.0.5') found by
pkg_resources not found by import.
Warning: dependency 'enum34' (version '1.0') found by pkg_resources not
found by import.
Warning: dependency 'characteristic' (version '14.3.0') found by
pkg_resources not found by import.
Warning: dependency 'service-identity' (version '14.0.0') found by
pkg_resources not found by import.
For debugging purposes, the PYTHONPATH was
'/home/olabini/workspace/SPEAR/tahoe/allmydata-
tahoe-1.10.0/support/lib/python2.7/site-packages'
install_requires was
['setuptools >= 0.6c6', 'zfec >= 1.1.0', 'simplejson >= 1.4',
'zope.interface == 3.6.0, == 3.6.1, == 3.6.2, >= 3.6.5', 'Twisted >=
11.0.0', 'foolscap >= 0.6.3', 'pyOpenSSL', 'Nevow >= 0.6.0', 'pycrypto ==
2.1.0, == 2.3, >= 2.4.1', 'pyasn1 >= 0.0.8a', 'mock >= 0.8.0', 'pycryptopp
>= 0.6.0']
sys.path after importing pkg_resources was
/home/olabini/workspace/SPEAR/tahoe/allmydata-tahoe-1.10.0/support/bin:
/home/olabini/workspace/SPEAR/tahoe/allmydata-
tahoe-1.10.0/support/lib/python2.7/site-
packages/setuptools-0.6c16dev4.egg:
/home/olabini/workspace/SPEAR/tahoe/allmydata-tahoe-1.10.0/src:
/home/olabini/workspace/SPEAR/tahoe/allmydata-
tahoe-1.10.0/support/lib/python2.7/site-
packages/pycryptopp-0.6.0.1206569328141510525648634803928199668821045408958-py2.7
-linux-x86_64.egg:
/home/olabini/workspace/SPEAR/tahoe/allmydata-
tahoe-1.10.0/support/lib/python2.7/site-packages/mock-1.0.1-py2.7.egg:
/home/olabini/workspace/SPEAR/tahoe/allmydata-
tahoe-1.10.0/support/lib/python2.7/site-packages/Nevow-0.11.1-py2.7.egg:
/home/olabini/workspace/SPEAR/tahoe/allmydata-
tahoe-1.10.0/support/lib/python2.7/site-packages/foolscap-0.8.0-py2.7.egg:
/home/olabini/workspace/SPEAR/tahoe/allmydata-
tahoe-1.10.0/support/lib/python2.7/site-packages/zfec-1.4.24-py2.7-linux-
x86_64.egg:
/home/olabini/workspace/SPEAR/tahoe/allmydata-
tahoe-1.10.0/support/lib/python2.7/site-
packages/service_identity-14.0.0-py2.7.egg:
/home/olabini/workspace/SPEAR/tahoe/allmydata-
tahoe-1.10.0/support/lib/python2.7/site-packages/pyutil-2.0.0-py2.7.egg:
/home/olabini/workspace/SPEAR/tahoe/allmydata-
tahoe-1.10.0/support/lib/python2.7/site-
packages/pyasn1_modules-0.0.5-py2.7.egg:
/home/olabini/workspace/SPEAR/tahoe/allmydata-
tahoe-1.10.0/support/lib/python2.7/site-
packages/characteristic-14.3.0-py2.7.egg:
/home/olabini/workspace/SPEAR/tahoe/allmydata-
tahoe-1.10.0/support/lib/python2.7/site-packages/zbase32-1.1.5-py2.7.egg:
/home/olabini/workspace/SPEAR/tahoe/allmydata-
tahoe-1.10.0/support/lib/python2.7/site-packages/Twisted-13.0.0-py2.7
-linux-x86_64.egg:
/home/olabini/workspace/SPEAR/tahoe/allmydata-
tahoe-1.10.0/support/lib/python2.7/site-
packages/zope.interface-4.1.2-py2.7-linux-x86_64.egg:
/home/olabini/workspace/SPEAR/tahoe/allmydata-
tahoe-1.10.0/support/lib/python2.7/site-packages:
/usr/lib64/python27.zip:
/usr/lib64/python2.7:
/usr/lib64/python2.7/plat-linux2:
/usr/lib64/python2.7/lib-tk:
/usr/lib64/python2.7/lib-old:
/usr/lib64/python2.7/lib-dynload:
/usr/lib64/python2.7/site-packages:
/usr/lib64/python2.7/site-packages/gst-0.10:
/usr/lib64/python2.7/site-packages/gtk-2.0:
/usr/lib/python2.7/site-packages
}}}
The output is large enough that, depending upon the size of your screen,
you may wind up with the scary "Warning:... not found by import" lines at
the top of the screen, which sounds an awful lot like an !ImportError.
--
Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/2436>
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