Traceback (most recent call last): File "C:\python\python3.py", line 8, in <module> with open(r'python\03.module\xiyouji.txt', 'r', encoding='utf-8') as f: FileNotFoundError: [Errno 2] No such file or directory: 'python\\03.module\\xiyouji.txt'这个在python中运行错误怎么办
时间: 2023-10-06 07:06:00 浏览: 43
这个错误提示是说找不到你指定的文件路径,可能是因为你的文件路径有误。请确认一下文件是否存在于指定路径中,如果不存在,请确认路径是否正确。另外,你可以在文件路径中使用r来表示该路径为原始字符串,这样路径中的反斜杠就不会被转义。比如:`r'C:\python\03.module\xiyouji.txt'`。
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Traceback (most recent call last): File "D:\Python\程序练习\修改后的程序\解析1.py", line 5, in <module> sys.stdout.encoding="utf-8" AttributeError: readonly attribute
如果提示`AttributeError: readonly attribute`,说明`stdout`对象的`encoding`属性是只读的,不能直接修改。您可以尝试使用`io`模块中的`TextIOWrapper`类来包装标准输出,然后设置其编码。例如:
```python
import sys
import io
# 创建一个文本输出流,包装标准输出
sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8')
# 打印包含特殊字符的字符串
s = 'PDF文件头信息:\xae'
print(s)
```
在这个代码示例中,我们使用`io.TextIOWrapper`类来包装标准输出流,并设置其编码为UTF-8。然后,我们就可以像平常一样使用`print`语句输出包含特殊字符的字符串了。注意,一旦包装了标准输出流,就不能再使用`print`函数的`file`参数来指定输出流。如果需要输出到其他文件或对象,请使用`io`模块中的`open`函数打开文件或对象,并指定其编码。
Traceback (most recent call last): File "D:\pythonFiles\wikiextractor-master\wikiextractor-master\wikiextractor\WikiExtractor.py", line 648, in <module> main() File "D:\pythonFiles\wikiextractor-master\wikiextractor-master\wikiextractor\WikiExtractor.py", line 642, in main process_dump(input_file, args.templates, output_path, file_size, File "D:\pythonFiles\wikiextractor-master\wikiextractor-master\wikiextractor\WikiExtractor.py", line 428, in process_dump reduce.start() File "D:\软件\python\lib\multiprocessing\process.py", line 121, in start self._popen = self._Popen(self) File "D:\软件\python\lib\multiprocessing\context.py", line 327, in _Popen return Popen(process_obj) File "D:\软件\python\lib\multiprocessing\popen_spawn_win32.py", line 93, in __init__ reduction.dump(process_obj, to_child) File "D:\软件\python\lib\multiprocessing\reduction.py", line 60, in dump ForkingPickler(file, protocol).dump(obj) TypeError: cannot pickle '_io.TextIOWrapper' object (venv) D:\pythonFiles\wikiextractor-master\wikiextractor-master>Traceback (most recent call last): File "<string>", line 1, in <module> File "D:\软件\python\lib\multiprocessing\spawn.py", line 102, in spawn_main source_process = _winapi.OpenProcess( OSError: [WinError 87] 参数错误。 怎么解决
这个错误通常是由于在使用pickle模块将对象序列化时,对象中存在不能被序列化的属性或方法所导致的。有可能是在使用多进程库时,进程间传递了一个不能被序列化的_io.TextIOWrapper对象,导致了这个错误。你可以尝试将输出路径参数output_path改为一个字符串类型而非一个文件对象类型。另外,你可以尝试将输出文件的写入操作放在主进程中,而非在子进程中进行。这样可以避免在子进程中对文件对象进行pickle序列化。以下是一个可能的解决方案:
``` python
def worker_process(input_queue, output_queue, output_path):
# create output file in main process
with open(output_path, 'w', encoding='utf-8') as output_file:
while True:
data = input_queue.get()
if data is None:
break
# process data
# ...
output = process_data(data)
# put result into output queue
output_queue.put(output)
# write result to output file
output_file.write(output)
def process_dump(input_file, templates, output_path, file_size, process_count):
# create input queue
input_queue = Queue(maxsize=process_count)
# create output queue
output_queue = Queue(maxsize=process_count)
# spawn processes
processes = []
for i in range(process_count):
p = Process(target=worker_process, args=(input_queue, output_queue, output_path))
processes.append(p)
p.start()
# read input file and put data into input queue
with open(input_file, 'r', encoding='utf-8') as f:
for line in f:
input_queue.put(line)
# stop worker processes
for i in range(process_count):
input_queue.put(None)
for p in processes:
p.join()
# collect results from output queue and write to output file
with open(output_path, 'w', encoding='utf-8') as output_file:
while not output_queue.empty():
output = output_queue.get()
output_file.write(output)
```
在这个改进的代码中,我们将输出路径参数output_path改为一个字符串类型,并在主进程中打开输出文件,将输出文件的写入操作放在主进程中进行,避免在子进程中对文件对象进行pickle序列化。