Parse key value pairs in a text file

Question

I am a newbie with Python and I search how to parse a .txt file. My .txt file is a namelist with computation informations like :

myfile.txt

Answer 1

Use pandas.read_csv when the file format becomes more fancy (like comments).

val = u'''var0 = 16
var1 = 1.12434E10
var2 = -1.923E-3
var3 = 920'''
print(pandas.read_csv(StringIO(val), # or read_csv('myfile.txt',
            delimiter='\s*=\s*',
            header=None,
            names=['key','value'],
            dtype=dict(key=numpy.object,value=numpy.object), # or numpy.float64
            index_col=['key']).to_dict()['value'])
# prints {u'var1': u'1.12434E10', u'var0': u'16', u'var3': u'920', u'var2': u'-1.923E-3'}