1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
import json
import re
import os
import unicodedata
from io import open
from datetime import datetime
categories = []
url = 'https://duckduckgo.com/js/spice/currency/1/{0}/{1}'
weight = 100
parser_re = re.compile('.*?(\\d+(?:\\.\\d+)?) ([^.0-9]+) (?:in|to) ([^.0-9]+)', re.I)
db = 1
def normalize_name(name):
name = name.lower().replace('-', ' ').rstrip('s')
name = re.sub(' +', ' ', name)
return unicodedata.normalize('NFKD', name).lower()
def name_to_iso4217(name):
global db
name = normalize_name(name)
currencies = db['names'].get(name, [name])
return currencies[0]
def iso4217_to_name(iso4217, language):
global db
return db['iso4217'].get(iso4217, {}).get(language, iso4217)
def request(query, params):
m = parser_re.match(query)
if not m:
# wrong query
return params
amount, from_currency, to_currency = m.groups()
amount = float(amount)
from_currency = name_to_iso4217(from_currency.strip())
to_currency = name_to_iso4217(to_currency.strip())
q = (from_currency + to_currency).upper()
params['url'] = url.format(from_currency, to_currency)
params['amount'] = amount
params['from'] = from_currency
params['to'] = to_currency
params['from_name'] = iso4217_to_name(from_currency, 'en')
params['to_name'] = iso4217_to_name(to_currency, 'en')
return params
def response(resp):
"""remove first and last lines to get only json"""
json_resp = resp.text[resp.text.find('\n') + 1:resp.text.rfind('\n') - 2]
results = []
try:
conversion_rate = float(json.loads(json_resp)['conversion']['converted-amount'])
except:
return results
answer = '{0} {1} = {2} {3}, 1 {1} ({5}) = {4} {3} ({6})'.format(
resp.search_params['amount'],
resp.search_params['from'],
resp.search_params['amount'] * conversion_rate,
resp.search_params['to'],
conversion_rate,
resp.search_params['from_name'],
resp.search_params['to_name'],
)
url = 'https://duckduckgo.com/js/spice/currency/1/{0}/{1}'.format(
resp.search_params['from'].upper(), resp.search_params['to'])
results.append({'answer': answer, 'url': url})
return results
def load():
global db
current_dir = os.path.dirname(os.path.realpath(__file__))
json_data = open(current_dir + "/../data/currencies.json", 'r', encoding='utf-8').read()
db = json.loads(json_data)
load()
|
