title: Python grouping Orderbook (Pandas dataframe)
body: <pre><code>     asks_price  asks_qty exchange_name_ask     bids_price  bids_qty exchange_name_bid
  0      20156.51  0.000745          Coinbase      20153.28  0.000200          Coinbase
  1      20157.52  0.050000          Coinbase      20152.27  0.051000          Coinbase
  2      20158.52  0.000745          Coinbase      20151.28  0.000200          Kraken
  3      20158.52  0.050000          FTX           20151.28  0.051000          Coinbase
  
  </code></pre>
  <p>I would like to group the same price, add quantity together and combine the name of the exchange like :</p>
  <pre><code>     asks_price  asks_qty exchange_name_ask     bids_price  bids_qty exchange_name_bid
  0    20156.51  0.000745          Coinbase      20153.28  0.000200          Coinbase
  1    20157.52  0.050000          Coinbase      20152.27  0.051000          Coinbase
  2    20158.52  0.050745          CoinbaseFTX   20151.28  0.051200       KrakenCoinbase
  
  </code></pre>
  <p>Thanks you for help</p>