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PyCifRW new version

  • Subject: PyCifRW new version
  • From: James Hester <jrh@xxxxxxxxxxxx>
  • Date: Wed, 10 Nov 2004 16:44:25 +0900
A new version (1.19) of PyCifRW is now available at

PyCifRW provides a python module which can be used to
read and write CIF files in an intuitive fashion: e.g.

>>> cf = CifFile("jun02_1.cif")
>>> cf['si_std']['_diffrn_wavelength_meas'] 

will return the value (as a string) of item 
'_diffrn_wavelength_meas' in data block si_std 
of file "jun02_1.cif".  Values can be added/changed in a
similar fashion.

Major changes from the previously released version:

(1) This version attempts to be compliant with the CIF 1.1 standard
insofar as all non-compliant files will be rejected, all
compliant files are read properly, and output files can be
read in successfully.

(2) Maximum input line length is an optional parameter (default 2048)

(3) The licensing terms have been changed to allow redistribution
under certain broad conditions.

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