ローカルでは問題がないがpythonanywhere上でValueError: not enough values to unpack (expected 2, got 1)が発生します

前提・実現したいこと

ローカルでは問題なく動作するコードがpythonanywhere上では値が足りないと返されます。

発生している問題・エラーメッセージ

2019-07-28 15:25:55,015: Internal Server Error: /talking/
Traceback (most recent call last):
  File "/home/elis1107/.virtualenvs/myenv/lib/python3.7/site-packages/django/core/handlers/exception.py", line 34, in inner
    response = get_response(request)
  File "/home/elis1107/.virtualenvs/myenv/lib/python3.7/site-packages/django/core/handlers/base.py", line 115, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "/home/elis1107/.virtualenvs/myenv/lib/python3.7/site-packages/django/core/handlers/base.py", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/home/elis1107/.virtualenvs/myenv/lib/python3.7/site-packages/django/views/generic/base.py", line 71, in view
    return self.dispatch(request, *args, **kwargs)
  File "/home/elis1107/.virtualenvs/myenv/lib/python3.7/site-packages/django/views/generic/base.py", line 97, in dispatch
    return handler(request, *args, **kwargs)
  File "/home/elis1107/elis/talk/views.py", line 24, in post
    elis = Elis('elis')
  File "/home/elis1107/elis/talk/elis.py", line 9, in __init__
    self.dictionary = Dictionary()
  File "/home/elis1107/elis/talk/dictionary.py", line 9, in __init__
    self.load_pattern()
  File "/home/elis1107/elis/talk/dictionary.py", line 35, in load_pattern
    ptn, prs = line.split('\t')
ValueError: not enough values to unpack (expected 2, got 1)

該当のソースコード

django
1import random
2import re
3...
4...
5class Dictionary:
6    def __init__(self):
7        self.load_random()
8        self.load_pattern()
9        self.load_template()
10        self.load_markov()
11
12...
13...
14
15    def load_pattern(self):
16        self.pattern = []
17        pfile = open('/home/elis1107/elis/talk/dics/pattern.txt', 'r', encoding = 'utf_8')
18        p_lines = pfile.readlines()
19        pfile.close()
20        self.new_lines = []
21        for line in p_lines:
22            str = line.rstrip('\n')
23            if (str!=''):
24                self.new_lines.append(str)
25
26        for line in self.new_lines:
27            ptn, prs = line.split('\t')
28            self.pattern.append(ParseItem(ptn, prs))
29
30...
31...
32
33    def study_pattern(self, input, parts):
34        for word, part in parts:
35            if (keyword_check(part)):
36                depend = False
37                for ptn_item in self.pattern:
38                    m = re.search(ptn_item.pattern, word)
39                    if (re.search(ptn_item.pattern, word)):
40                        depend = ptn_item
41                        break
42                if depend:
43                    depend.add_phrase(input)
44                else:
45                    self.pattern.append(ParseItem(word, input))
46
47...
48...
49
50class ParseItem:
51    SEPARATOR = '^((-?\d+)##)?(.*)$'
52
53    def __init__(self, pattern, phrases):
54        m = re.findall(ParseItem.SEPARATOR,pattern)
55        self.modify = 0
56        if m[0][1]:
57            self.modify = int(m[0][1])
58        self.pattern = m[0][2]
59
60        self.phrases = []
61        self.dic = {}
62        for phrases in phrases.split('|'):
63            m = re.findall(ParseItem.SEPARATOR, phrases)
64            self.dic['phrase'] = m[0][2]
65            self.phrases.append(self.dic.copy())
66
67    def match(self, str):
68        return re.search(self.pattern,str)
69
70    def choice(self):
71        choices = []
72        return random.choice(choices)        
73
74    def add_phrase(self, phrase):
75        for p in self.phrases:
76            if p['phrase'] == phrase:
77                return
78        self.phrases.append({'phrase': phrase})
79
80    def make_line(self):
81        pattern = self.pattern
82        phrases = []
83        for p in self.phrases:
84            phrases.append(str(p['phrase']))
85        return pattern + '\t' + '|'.join(phrases)