If file is truncated/corrupted, catch and report this error

[jdhayhurst]

catch the pandas parser errors e.g. EOFError: Compressed file ended before the end-of-stream marker was reached and report this correctly.

[ljwh2]

@jdhayhurst to flesh out this ticket

[jdhayhurst]

When parsing the file with Pandas, add an exception catch for the EOFError so that we can report this back to users in a user friendly manner. I think the point to catch the exception would be here:

gwas-sumstats-tools/gwas_sumstats_tools/interfaces/data_table.py

Line 277 in 61eb571

df = pd.read_table(self.filename,

. How it's handled from there is up to you, but you'll want to be aware of the exception from the validate module.