Missing dependency on python-central

[Dominic Lemire]

On Ubuntu 11.10, mic2 is missing a dependency on the python-central package. In particular, pycentral is required for the function check_mic(bootstrap) in /usr/share/pyshared/mic/utils/bootstrap.py

This is an example of the error message you would get if python-central is not installed:
--- Start of error message ---
Traceback (most recent call last):
  File "/usr/bin/mic-image-creator", line 1014, in <module>
    ret = main()
  File "/usr/bin/mic-image-creator", line 800, in main
    utils.bootstrap.check_mic(options.bootstrap)
  File "/usr/lib/pymodules/python2.7/mic/utils/bootstrap.py", line 692, in check_mic
    stdout = subprocess.PIPE, stderr = dev_null)
  File "/usr/lib/python2.7/subprocess.py", line 679, in __init__
    errread, errwrite)
  File "/usr/lib/python2.7/subprocess.py", line 1239, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory
--- End of error message ---

After this is resolved, someone also needs to apply the following patch to that function:

--- /usr/share/pyshared/mic/utils/bootstrap.py
+++ /usr/share/pyshared/mic/utils/bootstrap.py
@@ -696,7 +696,6 @@
                 raise BootstrapError("Failed to run /usr/bin/pycentral")
             pycentraldir = output.split()[0]
             pythonlib = pycentraldir
- bin_path = "/usr/local/bin"
         elif dist == 'debian':
             if os.path.exists("/usr/share/python-support/mic2"):
                 pythonlib = "/usr/share/python-support/mic2"

Otherwise, you get the following error message:
--- Start of error message ---
Traceback (most recent call last):
  File "/usr/bin/mic-image-creator", line 1014, in <module>
    ret = main()
  File "/usr/bin/mic-image-creator", line 800, in main
    utils.bootstrap.check_mic(options.bootstrap)
  File "/usr/lib/pymodules/python2.7/mic/utils/bootstrap.py", line 705, in check_mic
    copy_mic2(bootstrap, bin_path = bin_path, python_lib_path = pythonlib)
  File "/usr/lib/pymodules/python2.7/mic/utils/bootstrap.py", line 681, in copy_mic2
    shutil.copy(bin_path + "/mic", bootstrap + "/usr/bin/mic")
  File "/usr/lib/python2.7/shutil.py", line 116, in copy
    copyfile(src, dst)
  File "/usr/lib/python2.7/shutil.py", line 81, in copyfile
    with open(src, 'rb') as fsrc:
IOError: [Errno 2] No such file or directory: '/usr/local/bin/mic'
--- End of error message ---