Python: Check if string is null or empty
if mystring and mystring.strip(): print "not null and not empty string" else: print "null or empty string"
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In Spark >= 1.5 you can use the size function to calculate the length of a column:
AWS CLI: Assuming a role
You can configure the AWS Command Line Interface to use a role by creating a profile for the role in the ~/.aws/config file. The following example shows a ro...
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```python import matplotlib.pyplot as plt
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```python import matplotlib.pyplot as plt import numpy as np