Provides a convenient way to append numpy arrays to a file.
The NpendWriter and NpendReader classes are used to write and read numpy arrays respectively.
- numpy
- sip
#! -*- coding:utf-8 -*-
from npend import NpendWriter, NpendReader
import numpy as np
if __name__=="__main__":
filePath="test.npd"
nw=NpendWriter(filePath)
arr=np.random.random((34,5,6))# Write an array that has three dimensions.
nw.append(arr)# Keep the size of the last two dimensions the same as the data written before.
arr=np.random.random((10,5,6))
nw.append(arr)
arr=np.random.random((5,6))# Write an array with two dimensions.
nw.append(arr)
nw.close()
nr=NpendReader(filePath)
arr=nr.read()# Load numpy array from file.
print(arr.shape,arr.dtype)