Python utility class

osc_ 4dgu16li 2020-11-15 08:31:28
python utility class


socket Communication tools

# -*- coding: utf-8 -*-
import socket
import time
def tcp_server(ip, port):
serverSocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
serverSocket.bind((ip, port))
serverSocket.listen(5)
client, addr = serverSocket.accept()
print(' Connection address :', addr)
while True:
data = client.recv(1024).decode()
print(' received {%s} The news of {%s}' % (addr, data))
if not data:
break
client.send('helloworld'.encode())
print("{%s} disconnect " % ip)
def tcp_client(ip, port):
client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
client.connect((ip, port))
while True:
print(client.recv(ip).decode())
def udp_server():
server_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
server_socket.bind((ip, port))
server_socket.settimeout(10)
while True:
try:
now = time.time()
receive_data, client = server_socket.recvfrom(1024)
print(time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(now))) # Displays the time in the specified format 
print(" From client %s, Sent %s\n" % (client, receive_data)) # Print the received content 
except socket.timeout:
print("tme out")
if __name__ == '__main__':
ip = '192.168.20.115'
port = 5552
tcp_server(ip, port)

http Call the tool class

http post form Form tool class

# -*- coding: utf-8 -*-
import json
import requests
import time
def process_form_data(api_url, fields, headers):
r = requests.post(api_url, data=fields, headers=headers)
return r
def process(api_url, data, headers):
response = requests.post(api_url, data=data, headers=headers)
result = response.text
result = json.loads(result)
return result
def get_rtsp(begin, expiretimes):
epid = 'system'
uid = 'wrzs3002'
password = 'wrzs3002-fj01'
streamtype = 'realstream'
puid = '200000000000000001'
idx = '0'
videoformat = 'rtsp'
stream = '0'
end = begin + expiretimes
data = {"epid": epid, "uid": uid, "password": password, "streamtype": streamtype, "puid": puid,
"idx": idx, "videoformat": videoformat, "stream": stream, "begin": begin,
"end": end, "expiretimes": expiretimes}
headers = {"Content-Type": "application/x-www-form-urlencoded; charset=UTF-8"}
api_url = "http://ip:9580/nmc/rest/rest.php"
result = process_form_data(api_url, data, headers)
result = json.loads(result.content)
rtsp = result.get('response').get('url')
rtsp = rtsp.replace('%3A', ':')
rtsp = rtsp.replace('%2F', '/')
rtsp = rtsp.replace('%3F', '?')
rtsp = rtsp.replace('%3D', '=')
return rtsp
if __name__ == '__main__':
begin = (int)(time.time())
expiretimes = 7200
rtsp = get_rtsp(begin, expiretimes)
print(rtsp)

download excel Picture tool class

# -*- coding: utf-8 -*-
import xlrd
import urllib.request
def process_excel(file_path, save_path):
print(' Start to deal with excel')
# Open file 
data = xlrd.open_workbook(file_path)
# Get worksheet by file name , Get worksheet 1
table = data.sheet_by_name('sheet1')
print(" Total number of lines :" + str(table.nrows))
print(" The total number of columns :" + str(table.ncols))
for i in range(table.nrows):
if i > 2767:
img_path = cel_B3 = table.cell(i, 8).value
img_name = 'drone_2020_{' + str(i) + '}_' + img_path.split('/')[-1]
try:
download_img(img_path, img_name, save_path)
except:
print('cuowu')
# Get the value of a cell , For example, get B3 Cell values 
# cel_B3 = table.cell(3, 2).value
# print(" The value of the third row and the second column :" + cel_B3)
def download_img(img_path, img_name, save_path):
request = urllib.request.Request(img_path)
try:
response = urllib.request.urlopen(request)
filename = save_path + '//' + img_name
if (response.getcode() == 200):
with open(filename, "wb") as f:
f.write(response.read()) # Write the content into the picture 
return filename
except:
return "failed"
if __name__ == '__main__':
file_path = 'D:\work\projects\drone\doc\ Fire point information export .xlsx'
save_path = 'D:\work\projects\drone\data\images'
process_excel(file_path, save_path)
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