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Изворен канал @pythonotes · Post #201 · 13 јан.

Мы уже знаем, что на текущую сессию интерпретатора изменение PYTHONPATH никак не повлияет. Но если вы запустите дочерний процесс, то он унаследует окружение текущего процесса, а значит и изменения в любых переменных будут на него влиять. Вот небольшой пример: Объявляем переменную user@host:~$ export PYTHONPATH=/path1 Запускаем интерпретатор user@host:~$ python3 Проверим что в sys.path >>> import sys >>> print(sys.path) ['', '/path1', '/usr/lib/...', ...] Добавляем что-то в переменную >>> import os >>> os.emviron['PYTHONPATH'] = '/path1:/path2' >>> print(sys.path) ['', '/path1', '/usr/lib/...', ...] Изменений нет. Но давайте запустим дочерний процесс и посмотрим там >>> os.system('python3') # теперь мы находимся в другом процессе >>> import sys >>> print(sys.path) ['', '/path1', '/path2', '/usr/lib/...', ...] Тоже самое будет и с subprocess, так как по умолчанию текущее окружение тоже наследуется. >>> import subprocess >>> subprocess.call(['python3', '-c', 'import sys;print(sys.path)']) ['', '/path1', '/path2', '/usr/lib/...', ...] ______________________ Лучшей практикой является передача энвайронмента явно через аргумент env! import subprocess subprocess.call(cmd, env={'PYTHONPATH': '...'}) Это поможет точно понимать какое окружение будет у запускаемого процесса и при этом не изменять окружение текущего процесса. #basic

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Journey to Fluency

@fluencyinenglish · Post #6907 · 26.02.2019 г., 15:19

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#speaking #recent#tests @ieltsstrategies Writing General Task 1 (Letter) You have recently moved to a new apartment. Write a letter to your friend and explain: – Why you moveED – Describe the new apartment. – Invite him/her to visit you. Writing Task 2 (Essay) Some people think that giving homework to students is not a good idea. Others believe that homework is good and helps students achieve better grades. Discuss both views and give your own opinion. THIS IS AN EXAMPLE OF AN OPINION ESSAY. Speaking test Interview – What is your full name? – Can I see your ID? – Where are you from? – Do you work or study? – Do you read newspapers? – Does your family read newspapers? – Do you read any news online? – What section of the newspaper do you read first? Why? Cue Card Talk about a toy you had in your childhood. Please say – What the toy WAS – Who gave it to you – How old were you then – AND EXPLAIN Why you remember this toy Follow up question: Do you still have this toy? @ieltsstrategies Discussion – Who else played with your toy? – Did you like it? Why? – What kind of toys do girls like? – What is the difference between toys for girls and boys? THIS QUESTION AIMS TO ENCOURAGE YOU TO COMPARE AND CONTRAST – Is there a toy that was common in your childhood? – Should children be allowed to choose their toys? – What should you think of while buying toys? – Do children learn something from toys? @ieltsstrategies

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