user7: If I want to setup an e-wallet service, would I have to create it from scratch or is there any existing open source software that could be used?

user50: Someone linked me to this project a while back: https://github.com/kangasbros/django-bitcoin

You can use the Wallet class to do different bitcoin-moving applications. Typical example would be a marketplace-style site, where there are multiple sellers and buyer. Or job freelance site, where escrow is needed. Or even an exchange could be done with this abstraction (a little extra classes would be needed however).
Note that while you move bitcoins between Wallet-objects, only bitcoin transactions needed are incoming and outgoing transactions. Transactions between the system "Wallet"-objects don't generate "real" bitcoin transactions. Every transaction (except incoming transactions) is logged to WalletTransaction object to ease accounting.

I haven't had a chance to play around with it myself yet, but it sounds like a decent starting point for building an e-wallet site using Python and Django.

user108: It seems like the project was abandoned, but you might be able to recycle the code.

During the last days I started hacking together a little online-wallet
  and thought some of you might be interested.
It is based on the bitcoind RPC API for handling accounts and adds
  custom labels stored in database.
If you want to send coins to a labeled address, just start typing the
  label and it will autocomplete.
It is a Ruby/Rails application released under the MIT license, so you
  can setup your own online wallet or even run it locally and use it
  instead of the default client UI.
Note that this is just a very early development version which still
  needs a lot of work.
Project/Source: http://open.sourceagency.org/projects/webtc Demo
  (testnet): http://webtc.interesthings.de (There is a demo Account:
  foo@bar.baz / password, but feel free to create new accounts, the
  email doesn't have to exist)
Feedback, bug reports, patches and donations welcome

bitcointalk.org

7: <p>If I want to setup an e-wallet service, would I have to create it from scratch or is there any existing open source software that could be used?</p>
 50: <p>Someone linked me to this project a while back: <a href="https://github.com/kangasbros/django-bitcoin" rel="nofollow noreferrer">https://github.com/kangasbros/django-bitcoin</a></p>
<blockquote>
<p>You can use the Wallet class to do different bitcoin-moving applications. Typical example would be a marketplace-style site, where there are multiple sellers and buyer. Or job freelance site, where escrow is needed. Or even an exchange could be done with this abstraction (a little extra classes would be needed however).</p>
<p>Note that while you move bitcoins between Wallet-objects, only bitcoin transactions needed are incoming and outgoing transactions. Transactions between the system &quot;Wallet&quot;-objects don't generate &quot;real&quot; bitcoin transactions. Every transaction (except incoming transactions) is logged to WalletTransaction object to ease accounting.</p>
</blockquote>
<p>I haven't had a chance to play around with it myself yet, but it sounds like a decent starting point for building an e-wallet site using Python and Django.</p>
 108: <p>It seems like the project was abandoned, but you might be able to recycle the code.</p>

<blockquote>
  <p>During the last days I started hacking together a little online-wallet
  and thought some of you might be interested.</p>
  
  <p>It is based on the bitcoind RPC API for handling accounts and adds
  custom labels stored in database.</p>
  
  <p>If you want to send coins to a labeled address, just start typing the
  label and it will autocomplete.</p>
  
  <p>It is a Ruby/Rails application released under the MIT license, so you
  can setup your own online wallet or even run it locally and use it
  instead of the default client UI.</p>
  
  <p>Note that this is just a very early development version which still
  needs a lot of work.</p>
  
  <p>Project/Source: <a href="http://open.sourceagency.org/projects/webtc">http://open.sourceagency.org/projects/webtc</a> Demo
  (testnet): <a href="http://webtc.interesthings.de">http://webtc.interesthings.de</a> (There is a demo Account:
  foo@bar.baz / password, but feel free to create new accounts, the
  email doesn't have to exist)</p>
  
  <p>Feedback, bug reports, patches and donations welcome</p>
</blockquote>

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