Oops! The 'bcftools' MultiQC module broke

[jamigo]

Description of bug:
[ERROR ] Oops! The 'bcftools' MultiQC module broke...

MultiQC Error log:

============================================================
Module bcftools raised an exception: Traceback (most recent call last):
  File "/home/user/.local/lib/python3.6/site-packages/multiqc/multiqc.py", line 579, in run
    output = mod()
  File "/home/user/.local/lib/python3.6/site-packages/multiqc/modules/bcftools/bcftools.py", line 39, in __init__
    n["stats"] = self.parse_bcftools_stats()
  File "/home/user/.local/lib/python3.6/site-packages/multiqc/modules/bcftools/stats.py", line 114, in parse_bcftools_stats
    quality = float(s[2].strip())
ValueError: could not convert string to float: '.'
============================================================

File that triggers the error:

content of the file example.vcf.stats.txt

# QUAL	[2]id	[3]Quality	[4]number of SNPs	[5]number of transitions (1st ALT)	[6]number of transversions (1st ALT)	[7]number of indels
QUAL	0	.	76	38	38	19

MultiQC run details (please complete the following):

• Command used to run MultiQC: /home/user/.local/bin/multiqc -f --no-data-dir -c file.yaml
• MultiQC Version: MultiQC v1.10
• Operating System: RHELS 7.5
• Python Version: Python 3.6
• Method of MultiQC installation: pip

Additional context

Using bcftools version 1.12 there seems to appear "." values in the [3]Quality column, which are not properly parsed by the bcftools module. I've worked around this issue by changing those "." values to "0.0", but a proper solution should be provided.

[ewels]

Should be a fairly easy PR to catch this exception type and assign the value to 0, if you fancy having a go at it...

[BiscuitCandy]

i have done it
mind checking, someone
PR : solved breakdown bcftools #1402