pycrash.py

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()