1. 使用os.remove()或os.unlink() import os file_path = 'example.txt' try: os.remove(file_path) # 等同于 os.unlink(file_path) print(f"文件 '{file_path}' 已成功删除") except FileNotFoundError: print(f"错误:文件 '{file_path}' 不存在") except PermissionError: print(f"错误:没有权...
2、关系运算符 关系运算符就是在比较两个操作符之间的“大小”、“相等”这样的关系。主要有 >(大于)、<(小于)、<=(小于或等于)、>=(大于或等于)、==(等于)、!=(不等于)这几个关系运算符。关系运算符对应的表达式的值是布尔类型,表达式符合要求则为真,不符合为假。 a=10b=20print(ab)print(a>=b)p...
defunzip_files(self): self.temp_directory.mkdir()withzipfile.ZipFile(self.filename)aszip:zip.extractall(self.temp_directory)deffind_replace(self):forfilenameinself.temp_directory.iterdir():withfilename.open()asfile: contents = file.read() contents = contents.replace(self.search_string, self....
Parameters --- path : str or file-like object If a string, it will be used as Root Directory path. **kwargs : Additional keywords passed to :func:`pyarrow.feather.write_feather`. Starting with pyarrow 0.17, this includes the `compression`, `compression_level`, `chunksize` and `versio...
elif ans=="no":con_exit=1returncon_exitelse:print("Answer with yes or no.")ask_for_confirm()defdelete_files(ending):forr,d,finos.walk(backup_dir):forfilesinf:iffiles.endswith("."+ending):os.remove(os.path.join(r,files))backup_dir=input("Enter directory to backup\n")# Enter dire...
Return a list of the lines in the string, breaking at line boundaries. Line breaks are not included in the resulting list unless keepends is given and true. """ pass def startswith(self, prefix, start=None, end=None): # real signature unknown; restored from __doc__ ...
'#' are skipped. Lines starting with 'import' are executed. For example, suppose sys.prefix and sys.exec_prefix are set to /usr/local and there is a directory /usr/local/lib/python2.5/site-packages with three subdirectories, foo, bar and spam, and two path ...
When using files, you set the file object as the argument to stdin, instead of using the input parameter: Python >>> import subprocess >>> from tempfile import TemporaryFile >>> with TemporaryFile() as f: ... ls_process = subprocess.run(["ls", "/usr/bin"], stdout=f) ... ...
With the commands above, you installed the rptree package as an editable module. Here’s a step-by-step breakdown of the actions you just performed: Line 1 cloned the Git repository of the rptree package. Line 2 changed the working directory to rptree/. Lines 3 and 4 created and activa...
defindex(self,value,start=None,stop=None):# real signature unknown;restored from __doc__"""T.index(value,[start,[stop]])->integer--returnfirst indexofvalue.Raises ValueErrorifthe value is not present."""return0 代码语言:javascript