title: Python: replace Japanese word with brace, such as {keyword: 部屋}, {keyword: 公園}, ..... with 'keyword'
body: <p>there are some Japanese sentences like following:</p>
  
  <pre><code> {keyword: 部屋}いいね!
   {keyword: 公園}は綺麗です.
   私は{keyword: 部屋捜査}です。
  </code></pre>
  
  <p>　　　..........
       .........</p>
  
  <p>I want to replace the substring like :{keyword: 部屋},{keyword: 公園}..... with 'keyword'.</p>
  
  <p>For example:   </p>
  
  <pre><code>input: 私は{keyword: 部屋捜査}です  
  
  output: 私はkeywordです
  </code></pre>
  
  <p>My trying code is following and but it is wrong, the result is same:</p>
  
  <pre><code>import re
  s = '{keyword: 賃貸}'    
  t = re.sub(r"\{keyword:[あ-んア-ン一-]+\}", 'keyword', s)
  print(t) 
  </code></pre>
  
  <p>Thanks! </p>