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words_analyzer.py
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words_analyzer.py
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import collections
import string
from typing import List
from flask import Flask, request, abort
app = Flask(__name__)
def sum_chars_count(words_counter) -> int:
return sum(words_counter.values())
def split_to_words(s: str) -> List[str]:
return s.split()
def count_ascii_letters(word_list: List[str]):
counter = collections.Counter()
result = list()
for word in word_list:
counter.update(word.lower())
chars_length = sum_chars_count(counter) # len of non-space chars, incl. nums
for ch in string.ascii_lowercase: # filter non-letters, e.g. nums
if counter[ch]:
result.append({ch: counter[ch]})
return result, chars_length
@app.route("/analyze", methods=["GET", "POST"])
def analyze():
if request.method == "POST":
json_data = request.get_json() # raise and return "bad request" if non-valid json
if "text" not in json_data:
abort(400)
text = json_data["text"]
words = split_to_words(text)
ch_count, ch_len_without_spaces = count_ascii_letters(words)
return {
"textLength": {
"withSpaces": len(text),
"withoutSpaces": ch_len_without_spaces,
},
"wordCount": len(words),
"characterCount": ch_count,
}
else:
return """
<p>Send POST request with JSON string to parse, e.g.</p>
<pre>curl --header "Content-Type: application/json" \
--request POST --data '{"text":"hello 2 times "}' \
https://py-words-analyzer.herokuapp.com/analyze</pre>
"""