import numpy as np

x = np.array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])
#print(x)

x = x[1:7:5]
#print(x)

x = np.array([
            [
                [1],[2],[3]
            ], 
            [
                [4],[5],[6]
            ]
        ])
#print(x)
print(x.shape)

(2, 3, 1)

import numpy as np

a = np.array([1, 2, 3])  # Create a rank 1 array

print (type(a))            # Prints "<type 'numpy.ndarray'>"
print (a.shape)           # Prints "(3,)"
print (a[0], a[1], a[2])   # Prints "1 2 3"
a[0] = 5                 # Change an element of the array
print (a)                  # Prints …

def checkInArray(list, cc):
    #print(len(list))
    for x in list:
        print(x)

        if(x in cc):
            print('x['+x+'] ==> '+cc)
            return True

    return False


domain = "springframework.guru"

if(checkInArray(["baeldung", "abcde.com", "docs.spring.io", "springframework.guru",
                     "logback.qos.ch", "javabeat.net"], domain) ):
    print("java")

baeldung
abcde.com
docs …

import numpy as np

x1 = np.arange(1,10).reshape(3,3)
print(x1.shape)

x1_new = x1[:,np.newaxis]
print(x1_new.shape)

(3, 3)
(3, 1, 3)