1、Jpg转Png

完成各种图片格式的转换

# 图片格式转换, Jpg转Png

# 方法①
from PIL import Image

img = Image.open('test.jpg')
img.save('test1.png')

# 方法②
from cv2 import imread, imwrite

image = imread("test.jpg", 1)
imwrite("test2.png", image)

2、PDF加密和解密

# PDF加密
import pikepdf

pdf = pikepdf.open("test.pdf")
pdf.save('encrypt.pdf', encryption=pikepdf.Encryption(owner="your_password", user="your_password", R=4))
pdf.close()

解密

# PDF解密
import pikepdf

pdf = pikepdf.open("encrypt.pdf",  password='your_password')
pdf.save("decrypt.pdf")
pdf.close()

3、获取电脑的配置信息

# 获取计算机信息
import wmi

def System_spec():
    Pc = wmi.WMI()
    os_info = Pc.Win32_OperatingSystem()[0]
    processor = Pc.Win32_Processor()[0]
    Gpu = Pc.Win32_VideoController()[0]
    os_name = os_info.Name.encode('utf-8').split(b'|')[0]
    ram = float(os_info.TotalVisibleMemorySize) / 1048576

    print(f'操作系统: {os_name}')
    print(f'CPU: {processor.Name}')
    print(f'内存: {ram} GB')
    print(f'显卡: {Gpu.Name}')

    print("\n计算机信息如上 ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑")

System_spec()

4、解压文件

使用zipfile模块进行文件解压，同理也可以对文件进行压缩。

# 解压文件
from zipfile import ZipFile

unzip = ZipFile("file.zip", "r")
unzip.extractall("output Folder")

5、Excel工作表合并

帮助你将Excel工作表合并到一张表上。
设置表格数量为5，将会合并前5张表的内容。

import pandas as pd

# 文件名
filename = "test.xlsx"
# 表格数量
T_sheets = 5

df = []
for i in range(1, T_sheets+1):
    sheet_data = pd.read_excel(filename, sheet_name=i, header=None)
    df.append(sheet_data)

# 合并表格
output = "merged.xlsx"
df = pd.concat(df)
df.to_excel(output)

6、将图像转换为素描图

需要安装cv2

pip install opencv-python

转换代码为：

# 图像转换
import cv2

# 读取图片
img = cv2.imread("img.jpg")
# 灰度
grey = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
invert = cv2.bitwise_not(grey)
# 高斯滤波
blur_img = cv2.GaussianBlur(invert, (7, 7), 0)
inverse_blur = cv2.bitwise_not(blur_img)
sketch_img = cv2.divide(grey, inverse_blur, scale=256.0)
# 保存
cv2.imwrite('sketch.jpg', sketch_img)
cv2.waitKey(0)
cv2.destroyAllWindows()

7、获取CPU温度

# 获取CPU温度
from time import sleep
from pyspectator.processor import Cpu
cpu = Cpu(monitoring_latency=1)
with cpu:
    while True:
        print(f'Temp: {cpu.temperature} °C')
        sleep(2)

8、提取PDF表格

# 方法①
import camelot

tables = camelot.read_pdf("tables.pdf")
print(tables)
tables.export("extracted.csv", f="csv", compress=True)

# 方法②, 需要安装Java8
import tabula

tabula.read_pdf("tables.pdf", pages="all")
tabula.convert_into("table.pdf", "output.csv", output_format="csv", pages="all")

9、截图

# 方法①
from mss import mss
with mss() as screenshot:
    screenshot.shot(output='scr.png')

# 方法②
import PIL.ImageGrab
scr = PIL.ImageGrab.grab()
scr.save("scr.png")

10、拼写检查器

# 拼写检查
# 方法①
import textblob

text = "mussage"
print("original text: " + str(text))

checked = textblob.TextBlob(text)
print("corrected text: " + str(checked.correct()))

# 方法②
import autocorrect
spell = autocorrect.Speller(lang='en')

# 以英语为例
print(spell('cmputr'))
print(spell('watr'))
print(spell('survice'))

https://mp.weixin.qq.com/s/lmesZVkM4hWFER-1qLytVw