ProjectHistory
The original work was done by Bernd Kreuss in 2009: https://sites.google.com/site/prof7bit/metatrader-python-integration
There are contributions by C. Polymeris http://chiselapp.com/user/polymeris/repository/metatraderpy/index
OTMql4Py has some changes to how the compiled dll code is used, and includes a Python file OTMql427.py with extra functionality.
Build 600 of Metatrader4 changed the definition of the fundamental datatype string from being ASCII to being Unicode, and broke every compiled library called by Mt4 that sent or received a string. The basic change with implemented as a minor patch release rolled out on live systems.
Metaquotes should have left the existing string definition to be ASCII, and introduced a new unicode datatype, along with Unicode aware functions, usually with the same function name, but with a W appended, like Windows does. You can still use ASCII strings in Metatrader4 >600: they are simply arrays of uchar, and there are conversion functions such as StringToCharArray.
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