TGINSIGHT SIMILAR POSTS
Изворен канал @pythonotes · Post #32 · 7 фев.
Скорее всего уже слышали, что складывать строки через + это плохая практика. Падение производительности, и всё такое. Без лишних слов, давайте измерять: from timeit import timeit def t1(): # складываем 10 строк через + из переменной t = 'text' for _ in range(1000): s = t + t + t + t + t + t + t + t + t def t2(): # склеиваем список строк через метод join arr = ['text'] * 10 for _ in range(1000): s = ''.join(arr) def t3(): # складываем через + но не из переменной а непосредственно инлайн объекты for _ in range(1000): s = 'text' + 'text' + 'text' + ... # всего 10 раз Теперь каждую строку склейки запустим по 10М раз >>> timeit(t1, number=10000) 0.21951690399964718 >>> timeit(t2, number=10000) 1.4978306379998685 >>> timeit(t3, number=10000) 0.2213820789993406 Хм, а нам говорили что через "+" это плохо и медленно ))) 😁 Тут стоит учитывать, что речь идёт о склейке множества длинных строк. Давайте изменим условия: def t4(): t = 'text'*100 for _ in range(1000): s = t + t + t + t + t + t + t + t + t def t5(): arr = ['text'*100] * 10 for _ in range(1000): s = ''.join(arr) def t6(): for _ in range(1000): s = 'text'*100 + 'text'*100 + ... # всего 10 раз >>> timeit(t4, number=10000) 12.795130728000004 >>> timeit(t5, number=10000) 2.642637542999182 >>> timeit(t6, number=10000) 0.2184546610005782 Вот, уже другой разговор, сразу видна разница, в среднем в 6 раз. Но погодите, почему последний тест t6() по скорости такой же как и t3()? Ведь строки теперь в 100 раз длиннее! Это вопросы оптимизации кода, какие простые изменения ускоряют или замедляют выполнение программы. Мы столкнулись с примером обхода обращения к переменной. Например, именно так работает директива #define в С++, во время компиляции подставляя значение переменной вместо ссылки на неё. В Python это тоже работает, но часто ли вы сможете встретить такой способ работы со строками? К сожалению, способ почти только теоретический. В целом, тесты показали то, что мы хотели. Делаем выводы самостоятельно. Полный листинг 🌍 #tricks
Пребарај: #satellite
@voir_yeux · Post #12284 · 27.03.2026 г., 12:22
🇨🇳 La Chine a procédé au lancement réussi du satellite expérimental Shiyan‑33 qui sera principalement utilisé pour l’étude de l’environnement spatial, a rapporté l’agence Xinhua. #chine#satellite#lancement
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@amazingeo · Post #64 · 17.08.2025 г., 09:12
🌍 In 1972, the first Landsat satellite began photographing Earth's surface from space, fueling a new era of digital mapping and revealing real-time changes in forests, cities, and coastlines. ✨ #cartography⚡#satellite⚡#mapping⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography🌍
@amazingeo · Post #256 · 18.09.2025 г., 00:12
🌍 The deepest parts of the Amazon rainforest were first mapped by satellite only in the 21st century. Modern exploration now reveals hidden rivers and lost cities from space in this vast green wilderness. ✨ #exploration⚡#rainforest⚡#satellite⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography🌍
@amazingeo · Post #599 · 28.01.2026 г., 20:31
🌍 Space-based radar now tracks land subsiding from groundwater loss, revealing areas sinking by centimeters each year. These invisible changes help pinpoint regions at risk of flooding and damage. ✨ #remote⚡#sensing⚡#satellite⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels
@djangoproject · Post #99 · 14.07.2016 г., 04:57
https://github.com/daleroberts/tv tv ("#textview") is a small tool to quickly view high-resolution multi-band imagery directly in your terminal. It was designed for working with (very large) #satellite imagery data over a low-bandwidth connection. For example, you can directly visualise a Himawari 8 (11K x 11K pixel) image of the Earth directly from its URL: It is built upon the wonderful #GDAL library so it is able to load a large variety of image formats (GeoTiff, PNG, Jpeg, NetCDF, ...) and subsample the image as it reads from disk so it can handle very large files quickly. It has the ability to read filenames (or URLs) from stdin and load files directly from URLs without writing locally to disk. Command line options are styled after gdal_translate such as: -b to specify the bands (and ordering) to use, -srcwin xoff yoff xsize ysize to view a subset of the image, -r to specify the subsampling algorithm (nearest, bilinear, cubic, cubicspline, lanczos, average, mode).
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@venturevillagewall · Post #3512 · 20.12.2024 г., 09:29
$450K Fundraise for Bifrost Connect OrbitalNerds has raised $450K for its innovative satellite SSH service, Bifrost Connect, on December 4, 2024. For more details, visit OrbitalNerds. #Funding#Satellite#SSH#BifrostConnect#OrbitalNerds
@venturevillagewall · Post #3573 · 20.12.2024 г., 09:33
Myriota Secures $50M Funding Myriota has successfully raised $50 million in funding for its direct-to-orbit satellite connectivity solutions aimed at the Internet of Things. This funding round took place on December 19, 2024. For more details, visit Myriota. #Myriota#Funding#Satellite#IoT#Connectivity#SpaceTech#DirectToOrbit#Investment#TechNews#Telecommunications
@venturevillagewall · Post #3712 · 25.12.2024 г., 13:00
Funding Rounds Highlighted Major funding rounds recently announced include: - StarPlus Energy: $7.54B for EV battery plant development. - Yondr: $900M focused on hyperscale data centers. - TymeBank: $250M investment secured. - Cursor: $100M for an AI code editor. - Luma AI: $90M committed to visual AI innovation. - Al-Zahi Group: $83.24M for architecture and design services in Dubai. - GEMMABio: $34M to enhance access to advanced therapies for rare diseases. - Myriota: $31.15M for satellite connectivity in IoT. - EPTME: $30M for future lifestyle management. - Chengdu Tuomei Shuangdu: $27.49M investment. - Infinant: $15M for banking platform development. - Zero Gravity Aircraft Industry: $13.77M raised. - Scientic: $13.74M secured. - Zhongna Energy: $13.73M round completed. - Avalon Finance: $10M for blockchain-based lending. - Bluenote Health: $10M to enhance life sciences innovations. - HazelTree: $9.96M for treasury solutions. - Mindgard: $8M for AI security solutions. - Rujira: $7M raised for DeFi tools integration. - Dolphin Drying: $6.85M to advance drying machine technology. #Funding#EV#Battery#DataCenters#AI#Healthcare#Therapeutics#Finance#DeFi#IoT#Architecture#Design#Security#Innovation#Technology#Satellite#Blockchain#Lending#Liquidity#Energy#Media
@djangoproject · Post #224 · 07.01.2017 г., 16:53
#AI #automated_testing #automation #asyncio #atexit #button #concurrency #Coroutines #data_mining #dropdownbox #Debian #decorators #django_cms #form #Google #Gym #intelligence #input #lists #machine_learning #map #Metaprogramming #Micro_services #monitoring #Multipart #multi_touch_apps #multiprocessing #Nodes #numerical #OAuth #package #pytest #python #requests #Requests #satellite #scrapy #scikit_learn #SciPy #searching #submit #selectbox #sessions #TensorFlow #text_boxes #text #telegram #Threads #tuples #Universe #urllib #upload
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@djangoproject · Post #298 · 17.04.2017 г., 07:42
#AI#Artificial_Intelligence #aiohttp #API #AWS #asyncio #audio #automated_testing #automation #atexit #BeeWare #button #client #concurrency #cron #Coroutine #data_analysis #data_mining #data_processing #database #Deep_Learning #Debian #decorator #dispatch #django #dropdownbox #Docker #event #Firefox #form #freeze #functool #Generator #GeoDjango #Google #GPU #Gym #learn #Image_processing #intelligence #input #IOT #lambda #lists #machine_learning #Magenta #map #Metaprogramming #Micro_services #mind #monitoring #MongoDB #Mozilla #Multipart #multi_touch_apps #multiprocessing #Nodes #NoSQL #numeric_computation #numerical #NumPy #OAuth #object_serialization #OCR #overloading #package #parallel #pipeline #protocols #PostGIS #pyAudioAnalysis #PyInstaller #PySide #PyTorch #pytest #python #Pyvideo_archives #Qt #Redis #random #request #REST #satellite #scrapy #scikit_learn #SciPy #searching #submit #selectbox #Selenium #serialization #server #session #socket #sound #task #TensorFlow #text_boxes #text #test #telegram #Thread #transport #tuples #Universe #Unix #urllib #upload #Web
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@djangoproject · Post #425 · 28.08.2017 г., 03:37
#AI#Artificial_Intelligence #aiohttp #AngularJS #API #AWS #asyncio #audio #automated_testing #automation #atexit #BeeWare #button #client #concurrency #Coroutine #cron #curl #data_analysis #data_mining #data_processing #database #Deep_Learning #Debian #decorator #dict #dispatch #django #django_cms #dropdownbox #Docker #event #Firefox #form #Generator #GeoDjango #git #Google #GPU #Gym #learn #Image_processing #intelligence #input #IOT #lambda #learn #lists #machine_learning #Magenta #map #Metaprogramming #Micro_services #mind #monitoring #MongoDB #Mozilla #Multipart #multi_touch_apps #multiprocessing #Nodes #NoSQL #numeric_computation #numerical #NumPy #OAuth #object_serialization #OCR #overloading #package #parallel #pipeline #protocols #PostGIS #pyAudioAnalysis #pycon #Pyflakes #PyInstaller #PySide #PyTorch #pytest #python #Pyvideo_archives #Qt #React #Redis #random #request #REST #satellite #scrapy #scikit_learn #SciPy #searching #submit #selectbox #Selenium #serialization #server #socket #task #telegram #TensorFlow #test #text_boxes #text #tuples #unicode #Universe #Unix #urllib #upload #Web
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@djangoproject · Post #513 · 30.11.2017 г., 22:00
#AI#Artificial_Intelligence #AJAX #aiohttp #Anaconda #AngularJS #API #Atom #AWS #asyncio (#Asynchronous) #audio #automated_testing #automation #atexit #BeeWare #Big_Data #bitcoin #blockchain #Bluemix #Brython #button #Celery #client #class #classmethod #concurrency #Coroutine #cron #CSS #curl #data_analysis #data_mining #data_processing #database #Deep_Learning#deep_learning #Debian #decorator #deploy #dict #dispatch #django #django_cms #Django_REST_Framework #dropdownbox #Docker #event #Firefox #Flask #form #functions #Generator #GeoDjango #git #Google #GPU #GUI #Gym #host #HTML #httplib #learn #Image_processing #intelligence #input #Instagram #IOT #iPython #Jupyter #lambda #learn #License #Linux #lists #machine_learning #Magenta #map #Matplotlib #Metaprogramming #Micro_services #Micropython #mind #monitoring #MongoDB #modules #Mozilla #Multipart #multi_touch_apps #multiprocessing #Nodes #NoSQL #numeric_computation #numerical #NumPy #network #neural_network #OAuth #object_serialization #OCR #overloading #package #parallel #pipeline #protocols #PostGIS #pyAudioAnalysis #pycon #Pyflakes #PyInstaller #PyPI #PyQt #PySide #PyTorch #pytest #python #Pyvideo_archives #Qt #Raspberry_Pi #React #Redis #random #request #Regular_Expressions (#re) #REST #RSS #satellite #scikit_learn #SciPy #scrapy #searching #selectbox #Selenium #serialization #server #sessions #single_responsibility_principle #socket #Spark #str #submit #task #telegram #template #TensorFlow #test #text_boxes #text #tuples #unicode #Universe #Unix #unit_test #urllib #upload #uWSGI #Web #WSGI
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