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fix: check for empty iter-/generators #188

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Merged
merged 1 commit into from
Oct 24, 2023
Merged

fix: check for empty iter-/generators #188

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7 changes: 3 additions & 4 deletions src/_rtmidi.pyx
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Original file line number Diff line number Diff line change
Expand Up @@ -1098,9 +1098,6 @@ cdef class MidiOut(MidiBase):
"""
cdef vector[unsigned char] msg_v

if not message:
raise ValueError("'message' must not be empty.")

try:
msg_v.reserve(len(message))
except TypeError:
Expand All @@ -1109,7 +1106,9 @@ cdef class MidiOut(MidiBase):
for c in message:
msg_v.push_back(c)

if msg_v.size() > 3 and msg_v.at(0) != 0xF0:
if msg_v.size() == 0:
raise ValueError("'message' must not be empty.")
elif msg_v.size() > 3 and msg_v.at(0) != 0xF0:
raise ValueError("'message' longer than 3 bytes but does not "
"start with 0xF0.")

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