Below is the file output:
apples:20
orange:100
Below is the code:
d = {}
with open('test1.txt') as f:
for line in f:
if ":" not in line:
continue
key, value = line.strip().split(":", 1)
d[key] = value
for k, v in d.iteritems():
if k == 'apples':
v = v.strip()
if v == 20:
print "Apples are equal to 20"
else:
print "Apples may have greater than or less than 20"
if k == 'orrange':
v = v.strip()
if v == 20:
print "orange are equal to 100"
else:
print "orange may have greater than or less than 100"
In above code i am written "if k == 'orrange':", but its actually "orange" as per output file.
In this case I have to print orrange key is not exist in output file. Please help me. How to do this
This question is related to
python
python-2.7
Use the in
keyword.
if 'apples' in d:
if d['apples'] == 20:
print('20 apples')
else:
print('Not 20 apples')
If you want to get the value only if the key exists (and avoid an exception trying to get it if it doesn't), then you can use the get
function from a dictionary, passing an optional default value as the second argument (if you don't pass it it returns None
instead):
if d.get('apples', 0) == 20:
print('20 apples.')
else:
print('Not 20 apples.')
Source: Stackoverflow.com