如何从 python 中的 sas7bdat 文件或 xpt 文件中读取元数据？

Question

Can anybody share a code where one has to read metadata from sas7bdat or xpt file? I have code for reading data in python with the help of the sas7bdat library but unable to figure out how to get metadata from the same file.

Answer 1

I have released a package pyreadstat that wraps the C library readstat for python and gets you the metadata. You can also read sas7bcat files.

You would use it like this:

import pyreadstat

df, meta = pyreadstat.read_sas7bdat('/path/to/a/file.sas7bdat')

The meta object will have the metadata you are looking for including for instance variable labels, file encoding, file label. There is a read_xport function for xpt files and read_sas7bcat for catalog files, which contain other pieces of metadata, for instance value labels to be used in combination with your sas7bdat file.

Check the complete documentation: https://github.com/Roche/pyreadstat