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import time
import sys
import logging
from ..toolkit import formatTraceback
log = logging.getLogger("AVP.ComponentHandler")
class ComponentError(RuntimeError):
"""Gives the MainWindow a traceback to display, and cancels the export."""
prevErrors = []
lastTime = time.time()
def __init__(self, caller, name, msg=None):
if msg is None and sys.exc_info()[0] is not None:
msg = str(sys.exc_info()[1])
else:
msg = "Unknown error."
log.error("ComponentError by %s's %s: %s" % (caller.name, name, msg))
# Don't create multiple windows for quickly repeated messages
if len(ComponentError.prevErrors) > 1:
ComponentError.prevErrors.pop()
ComponentError.prevErrors.insert(0, name)
curTime = time.time()
if (
name in ComponentError.prevErrors[1:]
and curTime - ComponentError.lastTime < 1.0
):
return
ComponentError.lastTime = time.time()
if sys.exc_info()[0] is not None:
string = "%s component (#%s): %s encountered %s %s: %s" % (
caller.__class__.name,
str(caller.compPos),
name,
(
"an"
if any(
[
sys.exc_info()[0].__name__.startswith(vowel)
for vowel in ("A", "I", "U", "O", "E")
]
)
else "a"
),
sys.exc_info()[0].__name__,
str(sys.exc_info()[1]),
)
detail = formatTraceback(sys.exc_info()[2])
else:
string = name
detail = "Attributes:\n%s" % (
"\n".join([m for m in dir(caller) if not m.startswith("_")])
)
super().__init__(string)
caller.lockError(string)
caller._error.emit(string, detail)
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