我有一个脚本应该将某些内容附加到文件,但它引发了一个我不理解的错误,也不确定它是如何被触发的。
代码如下:
import re
num_words = "four kiddiewinks|four children|four kids"
words_list = num_words.split('|')
def append_2synonym(words_list, num_words):
with open('test2 words.txt', 'a+') as f:
read_f = f.read()
patt = r'^' + words_list[0] + '\|'
result = re.search(patt, read_f, re.MULTILINE)
if result == None:
f.write("\n" + num_words)
else:
print "\nNo match found in '2 words.txt' file"
append_2synonym(words_list, num_words)
这是“test2 words.txt”文件的内容:
five kiddiewinks|five kids|five children
mobile phone|cell phone|cellular phone
stinky cheese|smelly cheese
这是我得到的完整错误:
Traceback (most recent call last):
File "D:\Magic Briefcase\My Python Scripts\Spin Scripts\synonyms\testing2.py", line 16, in <module>
append_2synonym(words_list, num_words)
File "D:\Magic Briefcase\My Python Scripts\Spin Scripts\synonyms\testing2.py", line 12, in append_2synonym
f.write("\n" + num_words)
IOError: [Errno 0] Error
[Finished in 0.1s with exit code 1]
最佳答案
引用来自 Python file operations 的回答, 在 Windows 上切换读写时,必须有 fflush、fsetpos、fseek 或 rewind 操作介入。
这里是一个可能的修复:
import re
num_words = "four kiddiewinks|four children|four kids"
words_list = num_words.split('|')
def append_2synonym(words_list, num_words):
with open('test2 words.txt', 'a+') as f:
read_f = f.read()
patt = r'^' + words_list[0] + '\|'
result = re.search(patt, read_f, re.MULTILINE)
if result == None:
f.seek(0,2) # change is here !!
f.write("\n" + num_words)
else:
print "\nNo match found in '2 words.txt' file"
append_2synonym(words_list, num_words)
在 f.seek(0,2)
中,2
是 from_what
参数。 0
的 from_what
值从文件开头开始测量,1
使用当前文件位置,2
使用文件末尾作为引用点。 from_what
可以省略,默认为 0
,使用文件的开头作为引用点。
关于python - Python 中的 "IOError: [Errno 0] Error"错误,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/19283118/