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Catch divided by zero error #8

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Catch divided by zero error #8

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cd7c881
catch error for single data point trace and ctypes error
florentaden May 11, 2026
30e7212
cleanup unused debug flag
florentaden May 11, 2026
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37 changes: 29 additions & 8 deletions geonet_obspy_utils/clients/aws/client.py
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Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,6 @@
from parse import parse
from itertools import product


class Client(object):
"""
AWS Client to access waveform (all available clients) and event
Expand Down Expand Up @@ -112,7 +111,7 @@ def _list_available_files(self, prefix):
except self._s3.exceptions.NoSuchBucket:
print(f"Bucket '{self.waveform_bucket_name}' does not exist.")
except Exception as e:
print(f"Error accessing S3 bucket '{self.bucket_name}': {e}")
print(f"Error accessing S3 bucket '{self.waveform_bucket_name}': {e}")
return file_list

def get_waveforms(self, network, station, location, channel, starttime,
Expand Down Expand Up @@ -535,13 +534,34 @@ def _fix_mseed_timing(mstl_traceids):
"""
stream = Stream()
for traceid in mstl_traceids:
for segment in traceid.segments():
try:
segments = list(traceid.segments())
except ValueError as e:
n, s, l, c = sourceid2nslc(traceid.sourceid)
print(f"Skipping trace {n}.{s}.{l}.{c} due to mseedlib and ctypes error: {e}")
continue
for segment in segments:
data = np.ctypeslib.as_array(segment.datasamples)
# compute actual average sampling interval
dt = (UTCDateTime(segment.endtime_str()) -
UTCDateTime(segment.starttime_str()))/(len(data)-1)
trace = Trace()
n, s, l, c = sourceid2nslc(traceid.sourceid)

if len(data) <= 1:
print(f"Trace {n}.{s}.{l}.{c} has {len(data)} sample(s). "
"Skipping timing correction.")
continue

total_time = (UTCDateTime(segment.endtime_str()) -
UTCDateTime(segment.starttime_str()))

if total_time <= 0 or segment.samprate <= 0:
print(f"Trace {n}.{s}.{l}.{c} has degenerate timing "
f"(total_time={total_time}, samprate={segment.samprate}). "
"Skipping.")
continue

dt = total_time / (len(data) - 1)
trace = Trace()

trace.data = data
trace.stats.network = n
trace.stats.station = s
Expand All @@ -550,8 +570,9 @@ def _fix_mseed_timing(mstl_traceids):
trace.stats.starttime = UTCDateTime(segment.starttime_str())
trace.stats.delta = dt

trace.resample(int(segment.samprate))
trace.stats.sampling_rate = int(segment.samprate)
nominal_rate = round(segment.samprate) if segment.samprate >= 0.5 else segment.samprate
trace.resample(nominal_rate)
trace.stats.sampling_rate = nominal_rate

stream += trace

Expand Down