can't send payments since 1.5.5

[tongpu]

When I try to send a payment I get the following error:

Traceback (most recent call last):
  File "/tmp/Electrum-1.5.5/lib/gui_lite.py", line 399, in send
    self.amount_input.text(), self):
  File "/tmp/Electrum-1.5.5/lib/gui_lite.py", line 768, in send
    h = self.wallet.send_tx(tx)
  File "/tmp/Electrum-1.5.5/lib/wallet.py", line 808, in send_tx
    tx_hash = Hash(tx.decode('hex') )[::-1].encode('hex')
  File "/usr/lib/python2.7/encodings/hex_codec.py", line 42, in hex_decode
    output = binascii.a2b_hex(input)
TypeError: Non-hexadecimal digit found

My software versions:
python 2.7.3
python-ecdsa 0.8
python-slowaes 0.1a1
python-pyqt 4.9.5

[ecdsa]

this could happen if you use a deseeded wallet.

[ecdsa]

apparently the same problem was reported by someone else.

[tongpu]

My wallet should be a default electrum wallet, as I haven't changed any settings during setup.

[ecdsa]

I just pushed a fix. can you test it? if you cannot, please wait for next release (tonight)

[tongpu]

The fix worked, thanks for your help!

[ecdsa]

thanks for the report and testing. releasing 1.5.6 right now to fix that.