From: david-sarah Date: Sun, 10 Apr 2011 15:57:05 +0000 (-0700) Subject: allmydata/__init__.py: preserve the message and last traceback entry (file, line... X-Git-Url: https://git.rkrishnan.org/vdrive/%22news.html/status?a=commitdiff_plain;h=449b7ad8c7889d82ea9a65e8f8e1b286df33df99;p=tahoe-lafs%2Ftahoe-lafs.git allmydata/__init__.py: preserve the message and last traceback entry (file, line number, function, and source line) of ImportErrors in the package versions string. fixes #1389 --- diff --git a/src/allmydata/__init__.py b/src/allmydata/__init__.py index 2a5c110a..77973ab8 100644 --- a/src/allmydata/__init__.py +++ b/src/allmydata/__init__.py @@ -32,7 +32,7 @@ except ImportError: # http://allmydata.org/trac/tahoe/wiki/Versioning __full_version__ = __appname__ + '/' + str(__version__) -import os, platform, re, subprocess, sys +import os, platform, re, subprocess, sys, traceback _distributor_id_cmdline_re = re.compile("(?:Distributor ID:)\s*(.*)", re.I) _release_cmdline_re = re.compile("(?:Release:)\s*(.*)", re.I) @@ -137,9 +137,9 @@ def normalized_version(verstr, what=None): try: return verlib.NormalizedVersion(verlib.suggest_normalized_version(verstr)) except (StandardError, verlib.IrrationalVersionError): - cls, value, traceback = sys.exc_info() + cls, value, trace = sys.exc_info() raise PackagingError, ("could not parse %s due to %s: %s" - % (what or repr(verstr), cls.__name__, value)), traceback + % (what or repr(verstr), cls.__name__, value)), trace def get_package_versions_and_locations(): @@ -187,7 +187,9 @@ def get_package_versions_and_locations(): __import__(modulename) module = sys.modules[modulename] except ImportError: - packages.append( (pkgname, (None, None, modulename)) ) + etype, emsg, etrace = sys.exc_info() + trace_info = (emsg, ([None] + traceback.extract_tb(etrace))[-1]) + packages.append( (pkgname, (None, None, trace_info)) ) else: if 'sqlite' in pkgname: packages.append( (pkgname, (get_version(module, 'version'), package_dir(module.__file__), @@ -218,8 +220,8 @@ def check_requirement(req, vers_and_locs): return (actual, location, comment) = vers_and_locs[name] if actual is None: - # comment is the module name - raise ImportError("could not import %r for requirement %r" % (comment, req)) + # comment is (message, (filename, line number, function name, text)) for the original ImportError + raise ImportError("for requirement %r: %s" % (req, comment)) if actual == 'unknown': return actualver = normalized_version(actual, what="actual version %r of %s from %r" % (actual, name, location))