id,node_id,number,state,locked,title,user,body,created_at,updated_at,closed_at,merged_at,merge_commit_sha,assignee,milestone,draft,head,base,author_association,auto_merge,repo,url,merged_by
1295123787,PR_kwDOAMm_X85NMgVL,7698,open,0,Use read1 instead of read to get magic number,10678620,"Addresses #7697.

I changed the isinstance check because neither `read` nor `read1` are provided by IOBase. Only RawIOBase and BufferedIOBase provide `read` and `read1` respectively.

I think that there is little benefit to using `.tell()`. I suggest the following:
```python
filename_or_obj.seek(0)
magic_number = filename_or_obj.read1(count)
filename_or_obj.seek(0)
```
",2023-03-29T18:57:23Z,2023-04-18T22:36:30Z,,,fadc9b6bc1551d86c606c3304bad80d7ba378da1,,,0,085d7f3dde51f2af517f5922725bde1ee06405d2,44488288fd8309e3468ee45a5f7408d75a21f493,FIRST_TIME_CONTRIBUTOR,,13221727,https://github.com/pydata/xarray/pull/7698,