> Is there actually a patch file for  
> "eda419cf0416724dd8ba82f5aaa0220fa0d858a6"
> on the server or not?

Yes.  Here is its location, metadata, and complete contents:

HACK wonwin-mcbrootles-computer:~/playground/pycryptopp/pycryptopp-hf/ 
_darcs$ find . -iname '*eda419cf0416724dd8ba82f5aaa0220fa0d858a6*'
./pristine.hashed/eda419cf0416724dd8ba82f5aaa0220fa0d858a6
HACK wonwin-mcbrootles-computer:~/playground/pycryptopp/pycryptopp-hf/ 
_darcs$ ls -al ./pristine.hashed/ 
eda419cf0416724dd8ba82f5aaa0220fa0d858a6
-rw-rw-r--    1 wonwinmc wonwinmc      301 Feb 13 19:24 ./ 
pristine.hashed/eda419cf0416724dd8ba82f5aaa0220fa0d858a6
HACK wonwin-mcbrootles-computer:~/playground/pycryptopp/pycryptopp-hf/ 
_darcs$ zcat ./pristine.hashed/eda419cf0416724dd8ba82f5aaa0220fa0d858a6
file:
COPYING.TGPPL.html
8ace7d77d0a33c4d32108bde67c7674b1319ac5a
directory:
misc
9cdae64ba66c73e763ae534f75d2084da403cd1e
file:
README.txt
3728871b6efb09179c15b27fa35bf1a227d2f95c
file:
COPYING.GPL
f96b9c958bb8b1645479ddbe30b790d54559a8ab
file:
setup.py
408dc763bb59bc8ea6a654446c3028c79c52eefe
file:
ez_setup.py
6945e0db17459ffb762e6f729defd308e9bcd761
directory:
pycryptopp
3d568e08c47d30eb43ce12ddbe9ff4df0a263539