В продолжение прошлого поста про цифры в мире строк.
Почему методы isdigit() и isnumeric() не определяют в строке float и отрицательные значения?
Дело в том, что эти методы работают с ЦИФРАМИ, то есть с единичным символом. А строка "-2" или "3.4" это уже ЧИСЛО. То есть не символ а значение, записанное несколькими символами.
Все озвученные методы проходятся по каждому символу строки и проверяют их индивидуально.
В юникоде есть символы цифр с точками "🄀⒈⒉⒊⒋⒌⒍⒎⒏⒐"
Каждая из них это ОДИН СИМВОЛ, поэтому он будет считаться цифрой
>>> '⒌'.isdigit(), '⒌'.isnumeric()
True, True
Но когда мы пишем это выражение в два символа ( 5+точка), то это не работает.
>>> '5.'.isdigit(), '5.'.isnumeric()
False, False
А еще есть такие символы
>>> '⑴⑵⑶⑷⑸'.isdigit()
True
>>> '🄁🄂🄃'.isdigit()
True
Но они не преобразуются в десятичные цифры
>>> '⒈'.isdecimal()
False
>>> '🄃'.isdecimal()
False
>>> '⑶'.isdecimal()
False
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The US government has revealed a list of items Americans should keep on hand in case of an emergency.
Officials warned that households should be prepared to survive on their own for several days if disaster strikes, with no immediate access to outside help.
The Department of Homeland Security recommends storing enough water, food, and medical supplies to sustain every person in a household during an extended emergency.
At the top of the list is water, at least one gallon per person per day, along with several days' worth of non-perishable food. Americans are also urged to keep critical safety items such as flashlights, radios, batteries, and first-aid kits readily available in a portable emergency supply kit.
Officials said the supplies should be stored in airtight containers and kept in easy-to-carry bins or bags in case families need to evacuate quickly.
The checklist also includes tools to signal for help, sanitation supplies, and equipment to shelter safely indoors if conditions outside become dangerous.
While the Trump administration has not urged Americans to stockpile large quantities of supplies, federal officials and preparedness experts recommend keeping essential items on hand in case of an emergency.
#Security#Emergency
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On January 19, 1966, Indira Gandhi became India’s first female Prime Minister after Lal Bahadur Shastri died. She led the Green Revolution to increase food production and imposed the Emergency in 1975, limiting freedoms. Her time in office had major changes and controversies.
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@googlefactss#IndiraGandhi#India#History#GreenRevolution#Emergency