Issue #23: Fix a problem building strings from lists
Issue #23: Fix a problem building strings from lists

Using type(list) doesn't work for all possible types and isinstance() is a safer way to check this. This was happening with Python 2.7.10 when passing a list of specific digital channels to the _build() routine in export_data2() but could also happen in other places in the code.

ppannuto/python-saleae