python显示引用的库的版本

#load packages
import sys #access to system parameters https://docs.python.org/3/library/sys.html
print("Python version: {}". format(sys.version))

import pandas as pd #collection of functions for data processing and analysis modeled after R dataframes with SQL like features
print("pandas version: {}". format(pd.__version__))

import matplotlib #collection of functions for scientific and publication-ready visualization
print("matplotlib version: {}". format(matplotlib.__version__))

import numpy as np #foundational package for scientific computing
print("NumPy version: {}". format(np.__version__))

import scipy as sp #collection of functions for scientific computing and advance mathematics
print("SciPy version: {}". format(sp.__version__)) 

import IPython
from IPython import display #pretty printing of dataframes in Jupyter notebook
print("IPython version: {}". format(IPython.__version__)) 

import sklearn #collection of machine learning algorithms
print("scikit-learn version: {}". format(sklearn.__version__))

#misc libraries
import random
import time


#ignore warnings
import warnings
warnings.filterwarnings('ignore')
print('-'*25)

output:

Python version: 3.6.5 |Anaconda, Inc.| (default, Apr 29 2018, 16:14:56) 
[GCC 7.2.0]
pandas version: 0.23.0
matplotlib version: 2.2.2
NumPy version: 1.14.3
SciPy version: 1.1.0
IPython version: 6.4.0
scikit-learn version: 0.19.1
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