#
#  Cantera
#

import types
from constants import *
from gases import *
from exceptions import *
from set import set
#from _version import __createdate__

try:
    from Numeric import array, asarray, zeros, ones
except:
    print """

    ERROR: NumPy not found!
    
    Cantera uses the NumPy set of numerical extensions to
    Python. These do not appear to be present on your system, or else
    the 'Numeric' package is not on your Python path. You can get
    NumPy from http://sourceforge.net/projects/numpy, or see
    http://www.python.org/topics/scicomp/numpy.html for more
    information. If you are working on a Windows PC, an installer
    program is available from the sourceforge site that will install
    NumPy for you. The whole process takes less than a minute.

    """
    raise "could not import Numeric"

#
#  utilities
#
# write list items in comma-separated-value format
def writeCSV(f, list):
    for item in list:
        if type(item) == types.StringType:
            f.write(item+', ')
        else:
            f.write(`item`+', ')
    f.write('\n')


def table(keys, values):
    x = {}
    pairs = map(None, keys, values)
    for p in pairs:
        k, v = p
        x[k] = v
    return x

def getCanteraError():
    import _cantera
    return _cantera.get_Cantera_Error()