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Fix exception causes in zmqshell.py #516

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Merged
merged 1 commit into from
Jun 12, 2020
Merged

Fix exception causes in zmqshell.py #516

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6 changes: 3 additions & 3 deletions ipykernel/zmqshell.py
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Original file line number Diff line number Diff line change
Expand Up @@ -423,8 +423,8 @@ def autosave(self, arg_s):

try:
interval = int(arg_s)
except ValueError:
raise UsageError("%%autosave requires an integer, got %r" % arg_s)
except ValueError as e:
raise UsageError("%%autosave requires an integer, got %r" % arg_s) from e

# javascript wants milliseconds
milliseconds = 1000 * interval
Expand Down Expand Up @@ -485,7 +485,7 @@ def enable_gui(self, gui):
real_enable_gui(gui)
self.active_eventloop = gui
except ValueError as e:
raise UsageError("%s" % e)
raise UsageError("%s" % e) from e

def init_environment(self):
"""Configure the user's environment."""
Expand Down