50个开发必备的Python经典脚本(11-20)
目录
11.获取网站的IP地址和主机名
12. 终端进度条
安装
13.Wifi密码弹出器
14. 给定网站的快照
安装
15. 将文件分割成块
16. 加密和解密文本
$ 先决条件
17.定期截屏
怎么运行？
18. 十进制到二进制转换器
19. CLI Todo 应用程序
安装
如何使用它？
20. 货币转换器
建议收藏备用
11.获取网站的IP地址和主机名
该脚本将用于获取任何网站的 IP 地址和主机名。
# Get Ipaddress and Hostname of Website
# importing socket library
import socket
def get_hostname_IP():
hostname = input("Please enter website address(URL):")
try:
print (f'Hostname: {hostname}')
print (f'IP: {socket.gethostbyname(hostname)}')
except socket.gaierror as error:
print (f'Invalid Hostname, error raised is {error}')
get_hostname_IP()
12. 终端进度条
这里我只是以调整图像大小来显示进度条为例。当我们一次转换大量图像时，我们可以使用进度条来显示调整了多少图像的大小。
安装
- 显示进度条的库
pip install tqdm
- 用于调整图像大小的库
pip install Pillowfrom tqdm import tqdm
from PIL import Image
import os
from time import sleep
def Resize_image(size, image):
if os.path.isfile(image):
try:
im = Image.open(image)
im.thumbnail(size, Image.ANTIALIAS)
im.save("resize/" + str(image) + ".jpg")
except Exception as ex:
print(f"Error: {str(ex)} to {image}")
path = input("Enter Path to images : ")
size = input("Size Height , Width : ")
size = tuple(map(int, size.split(",")))
os.chdir(path)
list_images = os.listdir(path)
if "resize" not in list_images:
os.mkdir("resize")
for image in tqdm(list_images, desc="Resizing Images"):
Resize_image(size, image)
sleep(0.1)
print("Resizing Completed!")13.Wifi密码弹出器
从 Windows 操作系统获取保存的 wifi 密码
import subprocess
data = (
subprocess.check_output(["netsh", "wlan", "show", "profiles"])
.decode("utf-8")
.split("\n")
)
profiles = [i.split(":")[1][1:-1] for i in data if "All User Profile" in i]
for i in profiles:
results = (
subprocess
.check_output(["netsh", "wlan", "show", "profile", i, "key=clear"])
.decode("utf-8")
.split("\n")
)
results = [b.split(":")[1][1:-1] for b in results if "Key Content" in b]
try:
print("{:<30}| {:<}".format(i, results[0]))
except IndexError:
print("{:<30}| {:<}".format(i, ""))
14. 给定网站的快照
该脚本将捕获所提供网站的屏幕截图。
安装
阅读更多有关 selenium 此处的信息
pip install selenium
pip install chromedriver-binary==XX.X.XXXX.XX.X
import sys
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
import chromedriver_binary
script_name = sys.argv[0]
options = Options()
options.add_argument('--headless')
driver = webdriver.Chrome(options=options)
try:
url = sys.argv[1]
driver.get(url)
page_width = driver.execute_script('return document.body.scrollWidth')
page_height = driver.execute_script('return document.body.scrollHeight')
driver.set_window_size(page_width, page_height)
driver.save_screenshot('screenshot.png')
driver.quit()
print("SUCCESS")
except IndexError:
print('Usage: %s URL' % script_name)15. 将文件分割成块
该脚本接受分割索引和文件名，然后根据提供的索引分割它。
import sys
import os
import shutil
import pandas as pd
class Split_Files:
'''
Class file for split file program
'''
def __init__(self, filename, split_number):
'''
Getting the file name and the split index
Initializing the output directory, if present then truncate it.
Getting the file extension
'''
self.file_name = filename
self.directory = "file_split"
self.split = int(split_number)
if os.path.exists(self.directory):
shutil.rmtree(self.directory)
os.mkdir(self.directory)
if self.file_name.endswith('.txt'):
self.file_extension = '.txt'
else:
self.file_extension = '.csv'
self.file_number = 1
def split_data(self):
'''
spliting the input csv/txt file according to the index provided
'''
data = pd.read_csv(self.file_name, header=None)
data.index += 1
split_frame = pd.DataFrame()
output_file = f"{self.directory}/split_file{self.file_number}{self.file_extension}"
for i in range(1, len(data)+1):
split_frame = split_frame.append(data.iloc[i-1])
if i % self.split == 0:
output_file = f"{self.directory}/split_file{self.file_number}{self.file_extension}"
if self.file_extension == '.txt':
split_frame.to_csv(output_file, header=False, index=False, sep=' ')
else:
split_frame.to_csv(output_file, header=False, index=False)
split_frame.drop(split_frame.index, inplace=True)
self.file_number += 1
if not split_frame.empty:
output_file = f"{self.directory}/split_file{self.file_number}{self.file_extension}"
split_frame.to_csv(output_file, header=False, index=False)
if __name__ == '__main__':
file, split_number = sys.argv[1], sys.argv[2]
sp = Split_Files(file, split_number)
sp.split_data()16. 加密和解密文本
一个对文本进行编码和解码的小型 python 程序。
$ 先决条件
- pycryptodome 3.9.8
- Python 3
from Crypto.Cipher import AES
from Crypto import Random
from binascii import b2a_hex
import sys
# get the plaintext
plain_text = sys.argv[1]
# The key length must be 16 (AES-128), 24 (AES-192), or 32 (AES-256) Bytes.
key = b'this is a 16 key'
# Generate a non-repeatable key vector with a length
# equal to the size of the AES block
iv = Random.new().read(AES.block_size)
# Use key and iv to initialize AES object, use MODE_CFB mode
mycipher = AES.new(key, AES.MODE_CFB, iv)
# Add iv (key vector) to the beginning of the encrypted ciphertext
# and transmit it together
ciphertext = iv + mycipher.encrypt(plain_text.encode())
# To decrypt, use key and iv to generate a new AES object
mydecrypt = AES.new(key, AES.MODE_CFB, ciphertext[:16])
# Use the newly generated AES object to decrypt the encrypted ciphertext
decrypttext = mydecrypt.decrypt(ciphertext[16:])
# output
file_out = open("encrypted.bin", "wb")
file_out.write(ciphertext[16:])
file_out.close()
print("The key k is: ", key)
print("iv is: ", b2a_hex(ciphertext)[:16])
print("The encrypted data is: ", b2a_hex(ciphertext)[16:])
print("The decrypted data is: ", decrypttext.decode())17.定期截屏
用于定期捕获屏幕截图的 Python 脚本。
import os
import argparse
import pyautogui
import time
parser = argparse.ArgumentParser()
parser.add_argument("-p", "--path", help="absolute path to store screenshot.", default=r"./images")
parser.add_argument("-t", "--type", help="h (in hour) or m (in minutes) or s (in seconds)", default='h')
parser.add_argument("-f", "--frequency", help="frequency for taking screenshot per h/m/s.", default=1, type=int)
args = parser.parse_args()
sec = 0.
if args.type == 'h':
sec = 60 * 60 / args.frequency
elif args.type == 'm':
sec = 60 / args.frequency
if sec < 1.:
sec = 1.
if os.path.isdir(args.path) != True:
os.mkdir(args.path)
try:
while True:
t = time.localtime()
current_time = time.strftime("%H_%M_%S", t)
file = current_time + ".jpg"
image = pyautogui.screenshot(os.path.join(args.path,file))
print(f"{file} saved successfully.\n")
time.sleep(sec)
except KeyboardInterrupt:
print("End of script by user interrupt")
怎么运行？
python screenshot.py # takes screenshot at interval of 1 hour
python screenshot.py -t m -f 5 # takes 5 screenshots in 1 minute
python screenshot.py -p path_to_directory # screenshots will be saved to path_to_directory
18. 十进制到二进制转换器
一个小的Python程序，可以转换二进制和十进制，以及十进制到二进制。
try:
menu = int(input("Choose an option: \n 1. Decimal to binary \n 2. Binary to decimal\n Option: "))
if menu < 1 or menu > 2:
raise ValueError
if menu == 1:
dec = int(input("Input your decimal number:\nDecimal: "))
print("Binary: {}".format(bin(dec)[2:]))
elif menu == 2:
binary = input("Input your binary number:\n Binary: ")
print("Decimal: {}".format(int(binary, 2)))
except ValueError:
print ("please choose a valid option")19. CLI Todo 应用程序
带有命令行界面的简单 Todo 应用程序。支持添加、删除、查看任务条目。
安装
pip install clickimport click
@click.group()
@click.pass_context
def todo(ctx):
'''Simple CLI Todo App'''
ctx.ensure_object(dict)
#Open todo.txt – first line contains latest ID, rest contain tasks and IDs
with open('./todo.txt') as f:
content = f.readlines()
#Transfer data from todo.txt to the context
ctx.obj['LATEST'] = int(content[:1][0])
ctx.obj['TASKS'] = {en.split('```
')[0]:en.split('
```')[1][:-1] for en in content[1:]}
@todo.command()
@click.pass_context
def tasks(ctx):
'''Display tasks'''
if ctx.obj['TASKS']:
click.echo('YOUR TASKS\n**********')
#Iterate through all the tasks stored in the context
for i, task in ctx.obj['TASKS'].items():
click.echo('• ' + task + ' (ID: ' + i + ')')
click.echo('')
else:
click.echo('No tasks yet! Use ADD to add one.\n')
@todo.command()
@click.pass_context
@click.option('-add', '--add_task', prompt='Enter task to add')
def add(ctx, add_task):
'''Add a task'''
if add_task:
#Add task to list in context
ctx.obj['TASKS'][ctx.obj['LATEST']] = add_task
click.echo('Added task "' + add_task + '" with ID ' + str(ctx.obj['LATEST']))
#Open todo.txt and write current index and tasks with IDs (separated by " ```
{% endraw %}
")
curr_ind = [str(ctx.obj['LATEST'] + 1)]
tasks = [str(i) + '
{% raw %}
```' + t for (i, t) in ctx.obj['TASKS'].items()]
with open('./todo.txt', 'w') as f:
f.writelines(['%s\n' % en for en in curr_ind + tasks])
@todo.command()
@click.pass_context
@click.option('-fin', '--fin_taskid', prompt='Enter ID of task to finish', type=int)
def done(ctx, fin_taskid):
'''Delete a task by ID'''
#Find task with associated ID
if str(fin_taskid) in ctx.obj['TASKS'].keys():
task = ctx.obj['TASKS'][str(fin_taskid)]
#Delete task from task list in context
del ctx.obj['TASKS'][str(fin_taskid)]
click.echo('Finished and removed task "' + task + '" with id ' + str(fin_taskid))
#Open todo.txt and write current index and tasks with IDs (separated by " ```
{% endraw %}
")
if ctx.obj['TASKS']:
curr_ind = [str(ctx.obj['LATEST'] + 1)]
tasks = [str(i) + '
{% raw %}
```' + t for (i, t) in ctx.obj['TASKS'].items()]
with open('./todo.txt', 'w') as f:
f.writelines(['%s\n' % en for en in curr_ind + tasks])
else:
#Resets ID tracker to 0 if list is empty
with open('./todo.txt', 'w') as f:
f.writelines([str(0) + '\n'])
else:
click.echo('Error: no task with id ' + str(fin_taskid))
if __name__ == '__main__':
todo()如何使用它？
跑步
从代码编辑器或 Ide 运行它，或者 python todo.py [command] 在命令行中输入。（而不是[命令]添加你想要的命令）
命令
add 添加任务。提示用户输入任务文本。
done 删除任务。提示用户输入任务 ID。
tasks 显示所有输入的任务。
20. 货币转换器
一个用实时信息转换货币的小型 python 程序
import requests
import json
import sys
from pprint import pprint
# The below 4 lines bring out the value of currency from the api at fixer.io. I had to register there, the key is unique to me.
url = "http://data.fixer.io/api/latest?access_key=33ec7c73f8a4eb6b9b5b5f95118b2275"
data = requests.get(url).text
data2 = json.loads(data) #brings whether request was successful,timestamp etc
fx = data2["rates"]
currencies = [
"AED : Emirati Dirham,United Arab Emirates Dirham",
"AFN : Afghan Afghani,Afghanistan Afghani",
"ALL : Albanian Lek,Albania Lek",
"AMD : Armenian Dram,Armenia Dram",
"ANG : Dutch Guilder,Netherlands Antilles Guilder,Bonaire,Curaçao,Saba,Sint Eustatius,Sint Maarten",
"AOA : Angolan Kwanza,Angola Kwanza",
"ARS : Argentine Peso,Argentina Peso,Islas Malvinas",
"AUD : Australian Dollar,Australia Dollar,Christmas Island,Cocos (Keeling) Islands,Norfolk Island,Ashmore and Cartier Islands,Australian Antarctic Territory,Coral Sea Islands,Heard Island,McDonald Islands,Kiribati,Nauru",
"AWG : Aruban or Dutch Guilder,Aruba Guilder",
"AZN : Azerbaijan Manat,Azerbaijan Manat",
"BAM : Bosnian Convertible Mark,Bosnia and Herzegovina Convertible Mark",
"BBD : Barbadian or Bajan Dollar,Barbados Dollar",
"BDT : Bangladeshi Taka,Bangladesh Taka",
"BGN : Bulgarian Lev,Bulgaria Lev",
"BHD : Bahraini Dinar,Bahrain Dinar",
"BIF : Burundian Franc,Burundi Franc",
"BMD : Bermudian Dollar,Bermuda Dollar",
"BND : Bruneian Dollar,Brunei Darussalam Dollar",
"BOB : Bolivian Bolíviano,Bolivia Bolíviano",
"BRL : Brazilian Real,Brazil Real",
"BSD : Bahamian Dollar,Bahamas Dollar",
"BTC : Bitcoin,BTC, XBT",
"BTN : Bhutanese Ngultrum,Bhutan Ngultrum",
"BWP : Botswana Pula,Botswana Pula",
"BYN : Belarusian Ruble,Belarus Ruble",
"BYR : Belarusian Ruble,Belarus Ruble",
"BZD : Belizean Dollar,Belize Dollar",
"CAD : Canadian Dollar,Canada Dollar",
"CDF : Congolese Franc,Congo/Kinshasa Franc",
"CHF : Swiss Franc,Switzerland Franc,Liechtenstein,Campione d'Italia,Büsingen am Hochrhein",
"CLF : Chilean Unit of Account",
"CLP : Chilean Peso,Chile Peso",
"CNY : Chinese Yuan Renminbi,China Yuan Renminbi",
"COP : Colombian Peso,Colombia Peso",
"CRC : Costa Rican Colon,Costa Rica Colon",
"CUC : Cuban Convertible Peso,Cuba Convertible Peso",
"CUP : Cuban Peso,Cuba Peso",
"CVE : Cape Verdean Escudo,Cape Verde Escudo",
"CZK : Czech Koruna,Czech Republic Koruna",
"DJF : Djiboutian Franc,Djibouti Franc",
"DKK : Danish Krone,Denmark Krone,Faroe Islands,Greenland",
"DOP : Dominican Peso,Dominican Republic Peso",
"DZD : Algerian Dinar,Algeria Dinar",
"EGP : Egyptian Pound,Egypt Pound,Gaza Strip",
"ERN : Eritrean Nakfa,Eritrea Nakfa",
"ETB : Ethiopian Birr,Ethiopia Birr,Eritrea",
"EUR : Euro,Euro Member Countries,Andorra,Austria,Azores,Baleares (Balearic Islands),Belgium,Canary Islands,Cyprus,Finland,France,French Guiana,French Southern Territories,Germany,Greece,Guadeloupe,Holland (Netherlands),Holy See (Vatican City),Ireland (Eire),Italy,Luxembourg,Madeira Islands,Malta,Monaco,Montenegro,Netherlands",
"FJD : Fijian Dollar,Fiji Dollar",
"FKP : Falkland Island Pound,Falkland Islands (Malvinas) Pound",
"GBP : British Pound,United Kingdom Pound,United Kingdom (UK),England,Northern Ireland,Scotland,Wales,Falkland Islands,Gibraltar,Guernsey,Isle of Man,Jersey,Saint Helena and Ascension,South Georgia and the South Sandwich Islands,Tristan da Cunha",
"GEL : Georgian Lari,Georgia Lari",
"GGP : Guernsey Pound,Guernsey Pound",
"GHS : Ghanaian Cedi,Ghana Cedi",
"GIP : Gibraltar Pound,Gibraltar Pound",
"GMD : Gambian Dalasi,Gambia Dalasi",
"GNF : Guinean Franc,Guinea Franc",
"GTQ : Guatemalan Quetzal,Guatemala Quetzal",
"GYD : Guyanese Dollar,Guyana Dollar",
"HKD : Hong Kong Dollar,Hong Kong Dollar",
"HNL : Honduran Lempira,Honduras Lempira",
"HRK : Croatian Kuna,Croatia Kuna",
"HTG : Haitian Gourde,Haiti Gourde",
"HUF : Hungarian Forint,Hungary Forint",
"IDR : Indonesian Rupiah,Indonesia Rupiah,East Timor",
"ILS : Israeli Shekel,Israel Shekel,Palestinian Territories",
"IMP : Isle of Man Pound,Isle of Man Pound",
"INR : Indian Rupee,India Rupee,Bhutan,Nepal",
"IQD : Iraqi Dinar,Iraq Dinar",
"IRR : Iranian Rial,Iran Rial",
"ISK : Icelandic Krona,Iceland Krona",
"JEP : Jersey Pound,Jersey Pound",
"JMD : Jamaican Dollar,Jamaica Dollar",
"JOD : Jordanian Dinar,Jordan Dinar",
"JPY : Japanese Yen,Japan Yen",
"KES : Kenyan Shilling,Kenya Shilling",
"KGS : Kyrgyzstani Som,Kyrgyzstan Som",
"KHR : Cambodian Riel,Cambodia Riel",
"KMF : Comorian Franc,Comorian Franc",
"KPW : North Korean Won,Korea (North) Won",
"KRW : South Korean Won,Korea (South) Won",
"KWD : Kuwaiti Dinar,Kuwait Dinar",
"KYD : Caymanian Dollar,Cayman Islands Dollar",
"KZT : Kazakhstani Tenge,Kazakhstan Tenge",
"LAK : Lao Kip,Laos Kip",
"LBP : Lebanese Pound,Lebanon Pound",
"LKR : Sri Lankan Rupee,Sri Lanka Rupee",
"LRD : Liberian Dollar,Liberia Dollar",
"LSL : Basotho Loti,Lesotho Loti",
"LTL : Lithuanian litas",
"LVL : Latvia Lats",
"LYD : Libyan Dinar,Libya Dinar",
"MAD : Moroccan Dirham,Morocco Dirham,Western Sahara",
"MDL : Moldovan Leu,Moldova Leu",
"MGA : Malagasy Ariary,Madagascar Ariary",
"MKD : Macedonian Denar,Macedonia Denar",
"MMK : Burmese Kyat,Myanmar (Burma) Kyat",
"MNT : Mongolian Tughrik,Mongolia Tughrik",
"MOP : Macau Pataca,Macau Pataca",
"MRU : Mauritanian Ouguiya,Mauritania Ouguiya",
"MUR : Mauritian Rupee,Mauritius Rupee",
"MVR : Maldivian Rufiyaa,Maldives (Maldive Islands) Rufiyaa",
"MWK : Malawian Kwacha,Malawi Kwacha",
"MXN : Mexican Peso,Mexico Peso",
"MYR : Malaysian Ringgit,Malaysia Ringgit",
"MZN : Mozambican Metical,Mozambique Metical",
"NAD : Namibian Dollar,Namibia Dollar",
"NGN : Nigerian Naira,Nigeria Naira",
"NIO : Nicaraguan Cordoba,Nicaragua Cordoba",
"NOK : Norwegian Krone,Norway Krone,Bouvet Island,Svalbard,Jan Mayen,Queen Maud Land,Peter I Island",
"NPR : Nepalese Rupee,Nepal Rupee,India (unofficially near India-Nepal border)",
"NZD : New Zealand Dollar,New Zealand Dollar,Cook Islands,Niue,Pitcairn Islands,Tokelau",
"OMR : Omani Rial,Oman Rial",
"PAB : Panamanian Balboa,Panama Balboa",
"PEN : Peruvian Sol,Peru Sol",
"PGK : Papua New Guinean Kina,Papua New Guinea Kina",
"PHP : Philippine Peso,Philippines Peso",
"PKR : Pakistani Rupee,Pakistan Rupee",
"PLN : Polish Zloty,Poland Zloty",
"PYG : Paraguayan Guarani,Paraguay Guarani",
"QAR : Qatari Riyal,Qatar Riyal",
"RON : Romanian Leu,Romania Leu",
"RSD : Serbian Dinar,Serbia Dinar",
"RUB : Russian Ruble,Russia Ruble,Tajikistan,Abkhazia,South Ossetia",
"RWF : Rwandan Franc,Rwanda Franc",
"SAR : Saudi Arabian Riyal,Saudi Arabia Riyal",
"SBD : Solomon Islander Dollar,Solomon Islands Dollar",
"SCR : Seychellois Rupee,Seychelles Rupee",
"SDG : Sudanese Pound,Sudan Pound",
"SEK : Swedish Krona,Sweden Krona",
"SGD : Singapore Dollar,Singapore Dollar",
"SHP : Saint Helenian Pound,Saint Helena Pound",
"SLL : Sierra Leonean Leone,Sierra Leone Leone",
"SOS : Somali Shilling,Somalia Shilling",
"SRD : Surinamese Dollar,Suriname Dollar",
"STN : Sao Tomean Dobra,São Tomé and Príncipe Dobra",
"SVC : Salvadoran Colon,El Salvador Colon",
"SYP : Syrian Pound,Syria Pound",
"SZL : Swazi Lilangeni,eSwatini Lilangeni",
"THB : Thai Baht,Thailand Baht",
"TJS : Tajikistani Somoni,Tajikistan Somoni",
"TMT : Turkmenistani Manat,Turkmenistan Manat",
"TND : Tunisian Dinar,Tunisia Dinar",
"TOP : Tongan Pa'anga,Tonga Pa'anga",
"TRY : Turkish Lira,Turkey Lira,North Cyprus",
"TTD : Trinidadian Dollar,Trinidad and Tobago Dollar,Trinidad,Tobago",
"TWD : Taiwan New Dollar,Taiwan New Dollar",
"TZS : Tanzanian Shilling,Tanzania Shilling",
"UAH : Ukrainian Hryvnia,Ukraine Hryvnia",
"UGX : Ugandan Shilling,Uganda Shilling",
"USD : US Dollar,United States Dollar,America,American Samoa,American Virgin Islands,British Indian Ocean Territory,British Virgin Islands,Ecuador,El Salvador,Guam,Haiti,Micronesia,Northern Mariana Islands,Palau,Panama,Puerto Rico,Turks and Caicos Islands,United States Minor Outlying Islands,Wake Island,East Timor",
"UYU : Uruguayan Peso,Uruguay Peso",
"UZS : Uzbekistani Som,Uzbekistan Som",
"VEF : Venezuelan Bolívar,Venezuela Bolívar",
"VND : Vietnamese Dong,Viet Nam Dong",
"VUV : Ni-Vanuatu Vatu,Vanuatu Vatu",
"WST : Samoan Tala,Samoa Tala",
"XAF : Central African CFA Franc BEAC,Communauté Financière Africaine (BEAC) CFA Franc BEAC,Cameroon,Central African Republic,Chad,Congo/Brazzaville,Equatorial Guinea,Gabon",
"XAG : Silver Ounce,Silver",
"XAU : Gold Ounce,Gold",
"XCD : East Caribbean Dollar,East Caribbean Dollar,Anguilla,Antigua and Barbuda,Dominica,Grenada,The Grenadines and Saint Vincent,Montserrat",
"XDR : IMF Special Drawing Rights,International Monetary Fund (IMF) Special Drawing Rights",
"XOF : CFA Franc,Communauté Financière Africaine (BCEAO) Franc,Benin,Burkina Faso,Ivory Coast,Guinea-Bissau,Mali,Niger,Senegal,Togo",
"XPF : CFP Franc,Comptoirs Français du Pacifique (CFP) Franc,French Polynesia,New Caledonia,Wallis and Futuna Islands",
"YER : Yemeni Rial,Yemen Rial",
"ZAR : South African Rand,South Africa Rand,Lesotho,Namibia",
"ZMK : Zambian Kwacha,Zambia Kwacha",
"ZMW : Zambian Kwacha,Zambia Kwacha",
"ZWL : Zimbabwean Dollar,Zimbabwe Dollar",
]
# The below function calculates the actual conversion
def function1():
query = input(
"Please specify the amount of currency to convert, from currency, to currency (with space in between).\nPress SHOW to see list of currencies available. \nPress Q to quit. \n"
)
if query == "Q":
sys.exit()
elif query == "SHOW":
pprint(currencies)
function1()
else:
qty, fromC, toC = query.split(" ")
fromC = fromC.upper()
toC = toC.upper()
qty = float(round(int(qty), 2))
amount = round(qty * fx[toC] / fx[fromC], 2)
print(f"{qty} of currency {fromC} amounts to {amount} of currency {toC} today")
try:
function1()
except KeyError:
print("You seem to have inputted wrongly, retry!")
function1()汇总连接：
50个开发必备的Python经典脚本(1-10)
50个开发必备的Python经典脚本(11-20)
50个开发必备的Python经典脚本(21-30)
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