lasp/cdflib

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A python module for reading and writing NASA's Common Data Format (cdf) files

Stars: 92
Forks: 47
Open beginner issues: 0
Indexed issues: 67

Dominant language: Python
License: MIT
Last GitHub push: Jun 1, 2026
Latest indexed: Sep 18, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

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67 open issues indexed

Currently reads in all VVR data to get a subset Open

New feature

lasp/cdflib#1 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
_read_vvrs() assumes each VVR is in order Open

Bug

lasp/cdflib#2 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Automatically use cdfepoch.compute() when given a string input to start/end in varget Open

New feature

lasp/cdflib#4 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
CDF Epoch should return datetime objects Open

New feature

lasp/cdflib#16 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
TT2000 conversions appear to be off Open

Bug

lasp/cdflib#61 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Astropy epoch module precision issues Open

Bug

lasp/cdflib#62 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Astropy module force convert to a certain type Open

Bug

lasp/cdflib#63 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Astropy epoch performance generally bad Open

Performance

lasp/cdflib#65 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Read from in-memory bytes Open

New feature

lasp/cdflib#123 · 9 comments · 1 reaction · 0 assignees · Indexed Sep 18, 2026
Reduce data downloaded by tests Open

Testing Suite

lasp/cdflib#138 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Allow passing datetime.datetime objects to cdfepoch.compute Open

New feature

lasp/cdflib#147 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Can't create CDF from output of cdfepoch.compute Open

Bug

lasp/cdflib#148 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
write into CDF container Open

New feature

lasp/cdflib#149 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Epoch to Time/Datetime from attribute metadata Open

New feature

lasp/cdflib#152 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Return datetimes without needing call to cdfepoch.to_datetime Open

New feature

lasp/cdflib#158 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
CDFepoch.to_datetime() hard-codes the use of microsecond precision in datetime64 Open

New feature

lasp/cdflib#175 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Add tests for recent commits Open

Testing Suite

lasp/cdflib#232 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
globalattsget() returns lists for everything, even scalar values Open

lasp/cdflib#240 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Add checks for "None" in the global attributes in xarray_to_cdf Open

Bug

lasp/cdflib#260 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
In cdfwrite, don't cancel writing the global attributes if we encounter an error with one attribute Open

New feature

lasp/cdflib#261 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
When checking attributes in the xarray<->cdf stuff, don't check True/False. Instead check if attribute_value is None. Open

Bug

lasp/cdflib#262 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
When checking if EPOCH is monotonically increasing, check the attribute flag MONOTON Open

Bug

lasp/cdflib#263 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 18, 2026
Add a flag to not include things like "standard_name" in the cdf_to_xarray conversion Open

New feature

lasp/cdflib#264 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
monotonically increasing check should be ">=" Open

Bug

lasp/cdflib#266 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
cdfread.CDF globalattsget() return format not expected. attributes format conflict between cdfwrite and cdfread Open

Bug

lasp/cdflib#269 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
aioboto3 package dependency/install Open

New feature

lasp/cdflib#270 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 18, 2026
cdf_to_xarray to_netcdf fails with ValueError Open

Bug

lasp/cdflib#276 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Support for RLE, HUFF and AHUFF compression? Open

New feature

lasp/cdflib#280 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Use fsspec for opening files on s3 etc Open

New feature

lasp/cdflib#282 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
CDF_TIME_TT2000 should not include leap seconds Open

Bug

lasp/cdflib#283 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Investigate all dynamically set sections of the cdf file when writing Open

Bug

lasp/cdflib#288 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Add a unit test to catch the errors with dimensions of size 1 being read in incorrectly by cdf_to_xarray Open

Bug

lasp/cdflib#290 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Determine how to handle "write_var" with incorrect dimension sizes Open

Bug

lasp/cdflib#291 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Make a unit test for the bug with TT2000 conversions. Open

Testing Suite

lasp/cdflib#293 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
REVISITED - df.cdfepoch.encode_tt2000 and cdf.cdfepoch.breakdown_tt2000 - unexpected return values during or just after leap second Open

lasp/cdflib#296 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 18, 2026
Add a check in cdf_to_xarray to ensure DEPEND_X types are string Open

New feature

lasp/cdflib#297 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Update sample usage of writer class Open

Docs

lasp/cdflib#299 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Default row/column majority differs from documentation Open

Bug

lasp/cdflib#300 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 18, 2026
3D arrays (and higher dimensions) written (or read?) differently to CDFs with column majority Open

Bug

lasp/cdflib#301 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 18, 2026
Remove len != 0 check in cdf_to_xarray._determin_record_dimensions Open

Bug

lasp/cdflib#303 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Do Label variables need a DEPEND_1? Open

Bug

lasp/cdflib#304 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 18, 2026
Add range checks for the time conversions Open

New feature

lasp/cdflib#305 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Do not compress "epoch" variable in xarray_to_cdf Open

Bug

lasp/cdflib#306 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 18, 2026
Fix all # type: ignore in the code Open

Testing Suite

lasp/cdflib#310 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Bug - Divide by zero error writing compressed empty variable Open

Bug

lasp/cdflib#311 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Convert in-memory cdflib.CDF into xarray? Open

New feature

lasp/cdflib#312 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
varget/vdr_info uses case insensitive variable name comparisons Open

Bug

lasp/cdflib#314 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Cast attributes to string if user specifies string Open

New feature

lasp/cdflib#315 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 18, 2026
CDF Load adds DEPEND_1 for non-epoch variable Open

Bug

lasp/cdflib#316 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Fix scenarios where a variables points to itself Open

Bug

lasp/cdflib#317 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 18, 2026

lasp/cdflib

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