read file

read_file.py

file_name = '/path/to/file'

pubchem_ids = []

# reading all pubchem ids
with open(file_name) as f:
  for line in f:
    # removing endline symbols
    line = line.rstrip('\n')
    
    # convert to int
    pubchem_id = int(line)
    
    pubchem_ids.append(pubchem_id)
    
for cid in pubchem_ids:
  # do stuff