通过Pandas读取大文件的实例

import pandas as pd
f = open('E:/学习相关/Python/数据样例/用户侧数据/test数据.csv')
reader = pd.read_csv(f, sep=',', iterator=True)
loop = True
chunkSize = 100000
chunks = []
while loop:
 try:
 chunk = reader.get_chunk(chunkSize)
 chunks.append(chunk)
 except StopIteration:
 loop = False
 print("Iteration is stopped.")
df = pd.concat(chunks, ignore_index=True)
print(df)

pd.concat(objs, axis=0, join='outer', join_axes=None, ignore_index=False, keys=None, levels=None, names=None, Verify_integrity=False)