def too_expensive(): # pragma:no cover
from math import log10
sentence = ('the pigeons are punished' + ( ' and they suffer' * 152)).split()
print 'sentence of length',len(sentence)
start = time.clock()
v = chart.parse(sentence,return_chart=True,
print_trees=False,show_chart=False)
end = time.clock()
print "Took",(end - start),"seconds"
print "Counting trees"
start = time.clock()
print "Log of number of trees",log10(v.trace_edges())
end = time.clock()
print "Took",(end - start),"seconds"
print 'By best estimate this is many more trees than there are atoms in the universe'
ts = v.trees(v.solutions(v.topcat)[0])
tree = chart.treestring(ts.next())
print 'First tree has length',len(tree),'characters'
print tree[:40],'...\n',tree[10000:10100],'...\n',tree[-80:]
for i in range(199):
tree = chart.treestring(ts.next())
print '200th tree has length',len(tree),'characters'
print tree[:40],'...\n',tree[10000:10100],'...\n',tree[-80:]
def t():
chart.parse(("the pigeons are punished" + (" and they suffer" * 90)).split(), use_features=False, print_trees=False)