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Изворен канал @pythonotes · Post #83 · 11 мај

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У строки в Python есть два очень похожих метода. На столько похожих что кажется они делают одно и тоже. Это метод isdigit() и isnumeric() Давайте посмотрим зачем нам два одинаковых метода? И так ли они одинаковы? Очевидно что isdigit() говорит нам, состоит ли строка только из чисел 0-9 >>> '12'.isdigit() True >>> '12x'.isdigit() False >>> '-12'.isdigit() False >>> '12.5'.isdigit() False Можно предположить что isnumeric() делает более глубокий анализ и распознаёт в строке float или отрицательное число. >>> '15'.isnumeric() True >>> '-15'.isnumeric() False >>> '15.2'.isnumeric() False Нет, всё так же как и с другим методом. В чем же тогда разница? Для начала посмотрим следующие примеры: >>> '5'.isdigit(), '5'.isnumeric() # Обычная цифра 5 # True, True >>> '꧕'.isdigit(), '꧕'.isnumeric() # Яванская 5 # True, True >>> '෩'.isdigit(), '෩'.isnumeric() # Синхала 3 # True, True >>> '৩'.isdigit(), '৩'.isnumeric() # Бенгальская 3 # True, True >>> '༣'.isdigit(), '༣'.isnumeric() # Тибетская 3 # True, True >>> '³'.isdigit(), '³'.isnumeric() # 3 верхний индекс (степень) # True, True >>> '𝟝'.isdigit(), '𝟝'.isnumeric() # Математическая двойная 5 # True, True >>> '๔'.isdigit(), '๔'.isnumeric() # Тайская 4 # True, True >>> '➑'.isdigit(), '➑'.isnumeric() # 8 в круге # True, True А теперь примеры в которых, по мнению Python, результаты не равны >>> '¾'.isdigit(), '¾'.isnumeric() # дробь три четверти # False, True >>> '⅕'.isdigit(), '⅕'.isnumeric() # дробь одна пятая # False, True >>> '𒐶'.isdigit(), '𒐶'.isnumeric() # клинопись 3 # False, True >>> '三'.isdigit(), '三'.isnumeric() # 3 из унифицированной идеограммы # False, True >>> '⑩'.isdigit(), '⑩'.isnumeric() # цифра 10 в круге # False, True >>> 'Ⅳ'.isdigit(), 'Ⅳ'.isnumeric() # Римская 4 # False, True >>> '𑇪'.isdigit(), '𑇪'.isnumeric() # Сенегальская архаическая 10 # False, True >>> '𐌢'.isdigit(), '𐌢'.isnumeric() # Этрусская цифра 10 # False, True >>> 'ↂ'.isdigit(), 'ↂ'.isnumeric() # Римская цифра 10000 # False, True >>> '〇'.isdigit(), '〇'.isnumeric() # Символ ККЯ ноль # False, True Получается, что isdigit() говорит нам, является ли символ десятичной цифрой или спецсимволом, имеющим цифирное значение после преобразования. В свою очередь isnumeric() включает все дополнительные символы юникода которые имеют отношения к числовым и цифровым представлениям. Ну и пара примеров в которых в обоих случаях символ не является числом, это эмодзи. >>> '🕙'.isdigit(), '🕙'.isnumeric() # эмодзи 10 часов # False, False >>> '7️⃣'.isdigit(), '7️⃣'.isnumeric() # эмодзи 7 # False, False Также есть еще один дополнительный и весьма полезный метод isdecimal(). Он нам сообщает, можно ли из указанного символа сделать простую десятичную цифру. То есть сработает ли метод int(x) >>> '෩'.isdecimal(), int('෩') # Синхала 3 # True, 3 >>> '➑'.isdecimal(), int('➑') # 8 в круге # False, ValueError Какие выводы? 🔸 При определении цифры в строке isdigit() подходит лучше чем isnumeric(), но оба не гарантируют успешную конвертацию в int 🔸 Для однозначного определения возможности преобразования строки в int лучше подходит метод isdecimal() 🔸 Для однозначного определения символов 0...9 лучше использовать regex Полный список символов юникода которые определяются как numeric #basic

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@englishmeta1 · Post #250 · 26.06.2024 г., 10:40

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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

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English With Natives*

@sirjimmy · Post #31107 · 26.06.2024 г., 08:19

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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

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Journey to Fluency

@fluencyinenglish · Post #7901 · 04.10.2025 г., 04:32

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🔹 موضوع جمله (Topic Sentence) چیست؟ Topic sentence جمله‌ای است که موضوع اصلی یک پاراگراف را مشخص می‌کند. این جمله معمولاً در ابتدای پاراگراف می‌آید و خواننده را با ایده‌ی کل پاراگراف آشنا می‌کند. ویژگی‌ها: کوتاه و روشن است. کل پاراگراف حول آن جمله شکل می‌گیرد. معمولاً شامل یک موضوع کلی و کنترل ایده است. 🔹 کنترل ایده (Controlling Idea) چیست؟ Controlling idea همان بخشی از topic sentence است که محدوده یا جهت‌گیری پاراگراف را مشخص می‌کند. یعنی مشخص می‌کند که پاراگراف درباره‌ی چه جنبه‌ای از موضوع صحبت خواهد کرد. مثال: Topic sentence: “Online education has many advantages for students.” Controlling idea: “many advantages for students” → این بخش مشخص می‌کند که پاراگراف فقط درباره‌ی مزایای آموزش آنلاین برای دانش‌آموزان صحبت می‌کند، نه معایب یا مشکلاتش. 🔹 نحوه نوشتن topic sentence با controlling idea موضوع کلی را مشخص کنید مثال: “Technology is changing our daily lives.” کنترل ایده را اضافه کنید تا محدوده مشخص شود مثال: “Technology is changing our daily lives by improving communication, work efficiency, and access to information.” جمله را روشن و مستقیم بنویسید طولانی و پیچیده نباشد. کلمات مبهم استفاده نکنید. 🔹 شکل‌گیری پاراگراف Topic sentence → مشخص می‌کند پاراگراف درباره چه چیزی است. Supporting sentences → جملات بعدی مثال‌ها، توضیح‌ها، جزئیات و شواهد را ارائه می‌دهند. Concluding sentence (اختیاری) → ایده اصلی را جمع‌بندی می‌کند یا به پاراگراف بعدی وصل می‌شود. #IELTS#IELTSWriting#TopicSentence#ControllingIdea#ParagraphStructure#WritingTips#AcademicWriting#Band9#EnglishWriting#WritingSkills#Fluency#Coherence#LexicalResource#IELTSTask2

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#ielts#ieltswriting#topicsentence#controllingidea#paragraphstructure#writingtips#academicwriting#band9#englishwriting#writingskills#fluency#coherence#lexicalresource#ieltstask2