Created
March 21, 2014 14:31
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a = 1 | |
b = 2 | |
c = a + b | |
print c | |
a = '1' | |
b = '2' | |
c = a + b | |
print c | |
def addition(x, y): | |
z = x + y | |
return z | |
d = addition(a, b) | |
print d | |
#Creating a list | |
l = [8, 7, 100, 1] | |
print l | |
print l[0] #specify index | |
print l[2] #specify index | |
print len(l) # length of the list | |
print sorted(l) #sorting the list | |
#Creating a list with evenly spaced elements | |
# 10 elements | |
ll = range(10) | |
print ll | |
#the last index | |
print ll[len(ll)-1] | |
#secify a range (slicing) | |
print ll[1:3] | |
# check what happens | |
ll = range(10, 20) | |
print ll | |
ll = range(10, 20, 2) | |
#append a value | |
ll.append(1000) | |
print ll | |
#concatenate lists | |
lll = l + ll | |
print lll | |
l = [8, 7, 100, 1] | |
for a in l: | |
print a | |
for b in range(10): | |
print b | |
l = ['abc', 'efg', 'hij'] | |
for b in l: | |
print b | |
for i, b in enumerate(l): | |
print i, b | |
a = 1 | |
b = 2 | |
if a == b: # 'equal to' | |
print 'same' | |
if a != b: # 'not equal to' | |
print 'different' | |
# combined | |
if a == b: | |
print 'same' | |
else: | |
print 'different' | |
a= 1 | |
b= 2 | |
print a == b | |
print a != b | |
if True: | |
print 'prints always' | |
if False: | |
print 'never prints' | |
else: | |
print 'always printed' | |
#String | |
file1 = 'data.tif' | |
file2 = 'data.jpg' | |
print file1.endswith('.jpg') | |
print file1.endswith('.tif') | |
print file2.endswith('.tif') | |
print len(file1) | |
print file1[4:6] | |
file1 = 'data.tif' | |
def checkJPG(fname): | |
if fname.endswith('jpg'): | |
return True | |
else: | |
return False | |
print 'jpg file:', checkJPG(file1) | |
#Dictionary, key-value pairs | |
dd = {'vsvg':'abc.tif', 'pm':'cde.tif', 'dapi':'efg.tif'} | |
print dd['vsvg'] | |
print dd['dapi'] | |
print dd.keys() | |
print dd.values() |
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