survey_results.txt

                  Debugging Strategies: pdb / ipdb 2.40 X
     More testing: Doctests, unittest and coverage 2.40 X
              Multi-threading and multi-processing 2.33 X
                                The logging module 2.22 X
                         Performance and profiling 2.18 X
                Documentation (docstrings, Sphinx) 2.09 X
                      Sharing your code: packaging 2.09 X
                                    Code Reviewing 2.00 X
                            Metaclasses and type() 2.00 X
             Advanced OO: __new__, super(), mixins 2.00 X
                        GUI programming / wxPython 2.00 X
                     Persistance and Serialization 1.90 X
      Working with time: datetime, pytz, dateutils 1.90 X
        Non-relational DBs: (ZODB, MongoDB, BSDdb) 1.89 X
        Computational programing: The SciPy Stack. 1.80 X

SQL Databases: (DB-API w/ sqlite, postgres, mysql) 1.78
            Asynchronous programming: asyc / await 1.78

Code style: PEP-8 (pep8/pylint/pychecker/pyflakes) 1.73
              C extensions (C API, ctypes, cython) 1.33
                                 Unicode (and py2) 1.22
            Reference Counting and Weak references 1.22
                   Writing py2/py3 compatible code 1.20