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make import errors more visible

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fix #461
This commit is contained in:
benoitc 2013-01-06 12:47:06 +01:00
parent 8ab090aafb
commit eb73681181
1 changed files with 19 additions and 5 deletions
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24
gunicorn/util.py
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@ -23,6 +23,7 @@ import socket
import sys import sys
import textwrap import textwrap
import time import time
import traceback
import inspect import inspect
import errno import errno
import warnings import warnings
@ -118,7 +119,12 @@ def load_class(uri, default="sync", section="gunicorn.workers"):
dist = entry_str dist = entry_str
name = default name = default
return pkg_resources.load_entry_point(dist, section, name) try:
return pkg_resources.load_entry_point(dist, section, name)
except:
exc = traceback.format_exc()
raise RuntimeError("class uri %r invalid or not found: \n\n[%s]" % (uri,
exc))
else: else:
components = uri.split('.') components = uri.split('.')
if len(components) == 1: if len(components) == 1:
@ -128,11 +134,19 @@ def load_class(uri, default="sync", section="gunicorn.workers"):
return pkg_resources.load_entry_point("gunicorn", return pkg_resources.load_entry_point("gunicorn",
section, uri) section, uri)
except ImportError as e: except:
raise RuntimeError("class uri invalid or not found: " + exc = traceback.format_exc()
"[%s]" % str(e)) raise RuntimeError("class uri %r invalid or not found: \n\n[%s]" % (uri,
exc))
klass = components.pop(-1) klass = components.pop(-1)
mod = __import__('.'.join(components)) try:
mod = __import__('.'.join(components))
except:
exc = traceback.format_exc()
raise RuntimeError("class uri %r invalid or not found: \n\n[%s]" % (uri,
exc))
for comp in components[1:]: for comp in components[1:]:
mod = getattr(mod, comp) mod = getattr(mod, comp)
return getattr(mod, klass) return getattr(mod, klass)