oiTrans / subword-nmt /get_vocab.py
harveen
Harveen | Adding code
74fc30d
#! /usr/bin/env python
from __future__ import print_function
import os
import sys
import inspect
import warnings
import argparse
import codecs
from collections import Counter
# hack for python2/3 compatibility
from io import open
argparse.open = open
def create_parser(subparsers=None):
if subparsers:
parser = subparsers.add_parser('get-vocab',
formatter_class=argparse.RawDescriptionHelpFormatter,
description="Generates vocabulary")
else:
parser = argparse.ArgumentParser(
formatter_class=argparse.RawDescriptionHelpFormatter,
description="Generates vocabulary")
parser.add_argument(
'--input', '-i', type=argparse.FileType('r'), default=sys.stdin,
metavar='PATH',
help="Input file (default: standard input).")
parser.add_argument(
'--output', '-o', type=argparse.FileType('w'), default=sys.stdout,
metavar='PATH',
help="Output file (default: standard output)")
return parser
def get_vocab(train_file, vocab_file):
c = Counter()
for line in train_file:
for word in line.strip('\r\n ').split(' '):
if word:
c[word] += 1
for key,f in sorted(c.items(), key=lambda x: x[1], reverse=True):
vocab_file.write(key+" "+ str(f) + "\n")
if __name__ == "__main__":
currentdir = os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))
newdir = os.path.join(currentdir, 'subword_nmt')
if os.path.isdir(newdir):
warnings.simplefilter('default')
warnings.warn(
"this script's location has moved to {0}. This symbolic link will be removed in a future version. Please point to the new location, or install the package and use the command 'subword-nmt'".format(newdir),
DeprecationWarning
)
# python 2/3 compatibility
if sys.version_info < (3, 0):
sys.stderr = codecs.getwriter('UTF-8')(sys.stderr)
sys.stdout = codecs.getwriter('UTF-8')(sys.stdout)
sys.stdin = codecs.getreader('UTF-8')(sys.stdin)
else:
sys.stderr = codecs.getwriter('UTF-8')(sys.stderr.buffer)
sys.stdout = codecs.getwriter('UTF-8')(sys.stdout.buffer)
sys.stdin = codecs.getreader('UTF-8')(sys.stdin.buffer)
parser = create_parser()
args = parser.parse_args()
# read/write files as UTF-8
if args.input.name != '<stdin>':
args.input = codecs.open(args.input.name, encoding='utf-8')
if args.output.name != '<stdout>':
args.output = codecs.open(args.output.name, 'w', encoding='utf-8')
get_vocab(args.input, args.output)