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Article

BKChem on Mac OS X 10.2

Jerome Pansanel  (13 April 2006)

BKChem. BKChem is a chemical drawing program. It was concieved and written by Beda Kosata.

BKChem is written in Python. This language permits to add some features to common chemical drawing program:
- platform independence - BKChem should run on any platform that Python does.
- performance - as Python is interpreted language you should not expect the performance of a native code compiled application (in present days a very cheap tradeoff for platform independence). However BKChem should be pretty usable on all modern systems.

Software requirements. This tutorial aims to give you a way to install BKChem on Mac OS X. Before to install BKChem, you need to install:
- Python v2.3. You can get MacPython-2.3.3 for Mac OS X 10.2 on MacPython homepage
- TclTkAqua-8.4. You can get TclTkAqua-8.4.6.dmg on SourceForge

These softwares are available as package and are easy to install.

BKChem Installation. First of all, get the last archive on BKChem download page. Then:
- uncompress the archive (if Mac OS X didn’t it)
- open the Terminal application and get into the bkchem directory.
- type: python /usr/local/bin/python2.3 setup.py install
- edit the "/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/bkchem" script (change ’python’ on the second line with ’/usr/local/bin/pythonw’)
- you can now execute BKChem (/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/bkchem)

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