[Python] Share a few useful and explosive modules, it is recommended to collect!

Today, the editor will recommend several Python modules that are very useful in the field of automated office, which can help you improve efficiency at work and avoid repetitive mechanized operation processes.

Pathlib

When it comes to file system operations, I believe many people are still using the OS module in Python. In comparison, PathlibModule has many advantages, let's look at a few simple cases

Deleting and creating directories

For example, we can create and delete directories, the code is as follows

from pathlib import PathcurrentPath = Path.cwd()makePath = currentPath / 'pythonPractice'makePath.mkdir()

Then the same, the code to delete the directory is

currentPath = Path.cwd()delPath = currentPath / 'pythonPractice'delPath.rmdir()

Get directory

For example, we want to get the path of the current directory, the code is as follows

currentPath = Path.cwd()print(currentPath)

and the directory where the computer user is located

homePath = Path.home()print(homePath)

Path concatenation

For example, we want to splice the absolute path of the desktop, the code is as follows

Path(Path.home(), "Desktop")

Can also be

Path.joinpath(Path.home(), "Desktop")

Determination of directory files

For the specified path, we can judge whether it is a folder and whether it is a file, the code is as follows

input_path = r"specified path"if Path(input_path ).exists():if Path(input_path).is_file():print("It's a file!")elif Path(input_path ).is_dir():print("It's a folder!")else:print("The path is wrong!")

glob

Python is mainly used to find directories and files that meet specific rules, and return the search results to a list.

Because this module supports the use of regular wildcards for searching, it is also very convenient to use. Let's take a look at a simple case,

path1 = r".\[0-9].jpg"glob.glob(path1)

outut

['.\\1.jpg', '.\\2.jpg', '.\\3.jpg', ......]

The wildcards that are often used are

• *: matches 0 or more characters

• **: matches all files, directories, subdirectories and files in subdirectories

• []: matches characters within the specified range, for example [1-9] matches 1Characters within -9

• [!]: matches characters not in the specified range

Let's look at a few more cases, the code is as follows

for fname in glob.glob("./*.py"):print(fname)

The above code prints all files with py suffixes in the current directory, let's look at the case again

for fname in glob.glob("./file[!0-9].py"):print(fname)

The above code prints the py file with non-numeric symbols starting with filename.

PDF to Word document

Finally, let's talk about how to convert PDF documents into Word format documents. The module used is pdf2docx, we first use the pip command to install the module

pip install pdf2docx

Let's practice, the code is as follows

from pdf2docx import Convertercv = Converter(r"the specific path of the pdf document")cv.convert("test.docx", start=0,end=None)cv.close()

If it is a document with relatively simple page elements, the pdf2docx module is sufficient to process it, but sometimes individual pages in the PDF document are very fancy and are converted intoDocuments in Word format will look a bit messy afterwards.

Finally, we can also convert the specified number of pages, for example, only for the odd-numbered pages in the document, the code is as follows

from pdf2docx import Convertercv = Converter(r"the specific path of the pdf document")cv.convert("test.docx", pages=[1, 3, 5, 7])cv.close()

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