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NumPy: Convert numpy datetime64 to Timestamp

NumPy DateTime: Exercise-7 with Solution

Write a NumPy program to convert numpy datetime64 to Timestamp.

Sample Solution:-

Python Code:

import numpy as np
from datetime import datetime
dt = datetime.utcnow()
print("Current date:")
print(dt)
dt64 = np.datetime64(dt)
ts = (dt64 - np.datetime64('1970-01-01T00:00:00Z')) / np.timedelta64(1, 's')
print("Timestamp:")
print(ts)
print("UTC from Timestamp:")
print(datetime.utcfromtimestamp(ts))

Sample Output:

Current date:                                                          
2017-04-01 08:01:12.722055                                             
Timestamp:                                                             
1491033672.72                                                          
UTC from Timestamp:                                                    
2017-04-01 08:01:12.722055

Pictorial Presentation:

NumPy: Convert numpy datetime64 to Timestamp.

Python-Numpy Code Editor:

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Python: Tips of the Day

Decompose a collection:

Assume we have a function that returns a tuple of two values and we want to assign each value to a separate variable. One way is to use indexing as below:

abc = (5, 10)
x = abc[0]
y = abc[1]
print(x, y)

Output:

5 10

There is a better option that allows us to do the same operation in one line.

x, y = abc
print(x, y)

Output:

5 10

It can be extended to a tuple with more than 2 values or some other data structures such as lists or sets.

x, y, z = {1, 2, 3}
print(x, y, z)
x, y, z = ['a', 'b', 'c']
print(x, y, z)

Output:

1 2 3
a b c