@sirJimmy · Post #28902 · 02.05.2022 г., 16:04
A moment of patience in a moment of anger, prevents thousands of moments of regret. #truewisdom #selfmotivation #sirjimmy #teamjimmy
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Изворен канал @pythonotes · Post #303 · 27 дек.
Наверняка вы замечали, что в Python есть удобная функция для получения переменной окружения os.getenv(NAME) И её "сестра" для создания или изменения переменных окружения os.putenv(NAME, VALUE) Но почему-то putenv() не работает как должно. Энвайромент не обновляется! os.putenv('MYVAR', '1') print(os.getenv('MYVAR')) ... и ничего 😴 Почему так? На самом деле энвайромент обновляется, но это значение не добавляется в словарь os.environ. Откройте исходник функции os.getenv(). Это просто шорткат для os.environ.get() В то время как putenv() это built-in С-функция. Словарь os.environ (или точней класс из MutableMapping) создаётся из энвайромента в момент инициализации. Функция putenv() самостоятельно его не изменяет. В тоже время, когда вы создаёте или изменяете ключ в os.environ, автоматически вызывается putenv() в методе __setitem__(). То есть, технически putenv() всё делает верно, но в os.environ это не отражается. Можно проверить так: >>> os.putenv('MYVAR', '123') >>> os.system('python -c "import os;print(os.getenv(\'MYVAR\'))"') 123 Я объявил переменную в текущем процессе и вызвал дочерний процесс, который её унаследовал и получил в составе os.environ. Аналогично при удалении переменной вызывается еще одна built-in функция unsetenv(), удаляющая переменную из системы. Итого ▫️ Удобней всего явно обновлять переменные через os.environ ▫️ Есть способ неявно создать/удалить переменную через putenv/unsetenv, что не повлияет на os.environ но изменит энвайромент и передаст изменения сабпроцессам. Но так лучше не делать! ▫️os.environ это просто обертка для built-in функций putenv() и unsetenv(). #basic
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@sirJimmy · Post #28902 · 02.05.2022 г., 16:04
A moment of patience in a moment of anger, prevents thousands of moments of regret. #truewisdom #selfmotivation #sirjimmy #teamjimmy
@englishmeta1 · Post #250 · 26.06.2024 г., 10:40
Question ppl ask me often How can I improve my writing skills? Here is my reply Improving your writing skills is a valuable endeavor that can benefit you in many areas of life. Here are several strategies you can use to become a better writer: 1. Read Regularly: - Diverse Materials: Read a variety of genres, including fiction, non-fiction, journalism, and academic papers. This exposes you to different styles and vocabularies. - Analyzing: Pay attention to how authors construct sentences, develop ideas, and build arguments. Reflect on what makes their writing effective or ineffective. 2. Write Daily: - Journaling: Keep a daily journal to practice writing regularly. It doesn’t have to be formal; the goal is to make writing a habit. - Prompts: Use writing prompts to challenge yourself and spark creativity. Websites and books often offer daily prompts. 3. Learn the Basics: - Grammar and Syntax: Brush up on grammar and syntax rules. Resources like "The Elements of Style" by Strunk and White can be very useful. - Vocabulary: Expand your vocabulary through reading and using tools like a thesaurus. 4. Seek Feedback: - Peer Review: Share your writing with friends, colleagues, or writing groups to get constructive feedback. - Professional Feedback: Consider hiring a writing coach or taking a writing course. 5. Revise and Edit: - Multiple Drafts: Don’t be afraid to write multiple drafts. Revision is a crucial part of the writing process. - Editing: Learn to edit your work critically. Look for clarity, coherence, conciseness, and correctness. 6. Study Writing Techniques: - Workshops and Courses: Enroll in writing workshops or online courses. Websites like Coursera, Udemy, and edX offer courses on various aspects of writing. - Books on Writing: Read books about writing, such as "On Writing" by Stephen King or "Bird by Bird" by Anne Lamott. 7. Practice Different Styles: - Genres: Experiment with different genres (e.g., poetry, essays, short stories, technical writing) to find your strengths and preferences. - Perspectives: Write from different perspectives and in various voices to develop versatility. 8. Use Writing Tools: - Software: Use tools like Grammarly, Hemingway Editor, or ProWritingAid to help with grammar and style. - Outlining: Use outlining tools to organize your thoughts before you start writing. 9. Stay Motivated: - Set Goals: Set specific, achievable writing goals (e.g., write 500 words a day, complete a short story in a month). - Celebrate Progress: Acknowledge and celebrate your progress to stay motivated. 10. Read Aloud: - Hearing Your Writing: Reading your work aloud can help you catch errors and awkward phrasing that you might miss when reading silently. Improving your writing skills is a continuous process, and persistence is key. By integrating these strategies into your routine, you'll gradually become a more confident and effective writer. #sirjimmy#teamjimmy#writingskills#englishmadeeasy#truewisdom
@sirjimmy · Post #31107 · 26.06.2024 г., 08:19
Question ppl ask me often How can I improve my writing skills? Here is my reply Improving your writing skills is a valuable endeavor that can benefit you in many areas of life. Here are several strategies you can use to become a better writer: 1. Read Regularly: - Diverse Materials: Read a variety of genres, including fiction, non-fiction, journalism, and academic papers. This exposes you to different styles and vocabularies. - Analyzing: Pay attention to how authors construct sentences, develop ideas, and build arguments. Reflect on what makes their writing effective or ineffective. 2. Write Daily: - Journaling: Keep a daily journal to practice writing regularly. It doesn’t have to be formal; the goal is to make writing a habit. - Prompts: Use writing prompts to challenge yourself and spark creativity. Websites and books often offer daily prompts. 3. Learn the Basics: - Grammar and Syntax: Brush up on grammar and syntax rules. Resources like "The Elements of Style" by Strunk and White can be very useful. - Vocabulary: Expand your vocabulary through reading and using tools like a thesaurus. 4. Seek Feedback: - Peer Review: Share your writing with friends, colleagues, or writing groups to get constructive feedback. - Professional Feedback: Consider hiring a writing coach or taking a writing course. 5. Revise and Edit: - Multiple Drafts: Don’t be afraid to write multiple drafts. Revision is a crucial part of the writing process. - Editing: Learn to edit your work critically. Look for clarity, coherence, conciseness, and correctness. 6. Study Writing Techniques: - Workshops and Courses: Enroll in writing workshops or online courses. Websites like Coursera, Udemy, and edX offer courses on various aspects of writing. - Books on Writing: Read books about writing, such as "On Writing" by Stephen King or "Bird by Bird" by Anne Lamott. 7. Practice Different Styles: - Genres: Experiment with different genres (e.g., poetry, essays, short stories, technical writing) to find your strengths and preferences. - Perspectives: Write from different perspectives and in various voices to develop versatility. 8. Use Writing Tools: - Software: Use tools like Grammarly, Hemingway Editor, or ProWritingAid to help with grammar and style. - Outlining: Use outlining tools to organize your thoughts before you start writing. 9. Stay Motivated: - Set Goals: Set specific, achievable writing goals (e.g., write 500 words a day, complete a short story in a month). - Celebrate Progress: Acknowledge and celebrate your progress to stay motivated. 10. Read Aloud: - Hearing Your Writing: Reading your work aloud can help you catch errors and awkward phrasing that you might miss when reading silently. Improving your writing skills is a continuous process, and persistence is key. By integrating these strategies into your routine, you'll gradually become a more confident and effective writer. #sirjimmy#teamjimmy#writingskills#englishmadeeasy#truewisdom