print(err)
else:
print("%s is not a validate file" % self.file_name)
def get_part_file_name(self, part_num):
""""获取分割后的文件名称：在源文件相同目录下建立临时文件夹temp_part_file，然后将分割后的文件放到该路径下"""
temp_path = os.path.dirname(self.file_name) # 获取文件的路径（不含文件名）
part_file_name = temp_path + "temp_part_file"
if not os.path.exists(temp_path) : # 如果临时目录不存在则创建
os.makedirs(temp_path)
part_file_name += os.sep + "temp_file_" + str(part_num) + ".part"
return part_file_name
def write_file(self, part_num, *line_content):
"""将按行分割后的内容写入相应的分割文件中"""
part_file_name = self.get_part_file_name(part_num)
print(line_content)
try :
with open(part_file_name, "w") as part_file:
part_file.writelines(line_content[0])
except IOError as err:
print(err)
if __name__ == "__main__":
sf = SplitFiles(r"F:multiple_thread_read_file.txt")
sf.split_file()
上面只是进行了分割了，如果我们又要合并怎么办呢？下面这个例子可以实现分割与合并哦，大家一起看看。
例子3， 分割文件与合并函数
#!/usr/bin/python
##########################################################################
# split a file into a set of parts; join.py puts them back together;
# this is a customizable version of the standard unix split command-line
# utility; because it is written in Python, it also works on Windows and
# can be easily modified; because it exports a function, its logic can
# also be imported and reused in other applications;
##########################################################################
import sys, os
kilobytes = 1024
megabytes = kilobytes * 1000
chunksize = int(1.4 * megabytes) # default: roughly a floppy
