GlideinWMS

Krista reported a Frontend crashing with:
PicklingError: Can't pickle <type 'Boost.Python.enum'>: import of module Boost.Python failed

I just reinstalled my production frontend and it’s crashing with the error below.  I am using gwms 3.2.21 on an sl7 machine.  Am I missing a package or having a version issue?  I can see this:
Installed Packages
boost-python.x86_64                                                                          1.53.0-27.el7                                      @slf-primary
Available Packages
boost-python.i686                                                                            1.53.0-27.el7                                      slf-primary 

But any other advice is appreciated.  Thanks!
Krista

[2019-02-04 11:05:57,344] WARNING: fork:55: Forked process '<bound method glideinFrontendElement.get_condor_q of <__main__.glideinFrontendElement instance at 0x7f0f4d1e6440>>' failed
[2019-02-04 11:05:57,344] ERROR: fork:56: Forked process '<bound method glideinFrontendElement.get_condor_q of <__main__.glideinFrontendElement instance at 0x7f0f4d1e6440>>' failed
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/glideinwms/lib/fork.py", line 53, in fork_in_bg
    os.write(w, cPickle.dumps(out))
PicklingError: Can't pickle <type 'Boost.Python.enum'>: import of module Boost.Python failed
[2019-02-04 11:06:54,338] ERROR: glideinFrontendElement:251: Unhandled exception, dying: ['Traceback (most recent call last):\n', '  File "/usr/sbin/glideinFrontendElement.py", line 245, in main\n    rc = self.iterate()\n', '  File "/usr/sbin/glideinFrontendElement.py", line 275, in iterate\n    done_something = self.iterate_one()\n', '  File "/usr/sbin/glideinFrontendElement.py", line 374, in iterate_one\n    pipe_out=forkm_obj.fork_and_collect()\n', '  File "/usr/lib/python2.7/site-packages/glideinwms/lib/fork.py", line 281, in fork_and_collect\n    results = fetch_fork_result_list(pipe_ids)\n', '  File "/usr/lib/python2.7/site-packages/glideinwms/lib/fork.py", line 120, in fetch_fork_result_list\n    pipe_ids[key][\'pid\'])\n', '  File "/usr/lib/python2.7/site-packages/glideinwms/lib/fork.py", line 97, in fetch_fork_result\n    out = cPickle.loads(rin)\n', 'EOFError\n']
Traceback (most recent call last):
  File "/usr/sbin/glideinFrontendElement.py", line 245, in main
    rc = self.iterate()
  File "/usr/sbin/glideinFrontendElement.py", line 275, in iterate
    done_something = self.iterate_one()
  File "/usr/sbin/glideinFrontendElement.py", line 374, in iterate_one
    pipe_out=forkm_obj.fork_and_collect()
  File "/usr/lib/python2.7/site-packages/glideinwms/lib/fork.py", line 281, in fork_and_collect
    results = fetch_fork_result_list(pipe_ids)
  File "/usr/lib/python2.7/site-packages/glideinwms/lib/fork.py", line 120, in fetch_fork_result_list
    pipe_ids[key]['pid'])
  File "/usr/lib/python2.7/site-packages/glideinwms/lib/fork.py", line 97, in fetch_fork_result
    out = cPickle.loads(rin)
EOFError

This is GWMS 3.2.21
We saw a similar problem in the past but was fixed in 3.2.15, see [#12972]