本文实例讲述了python使用cStringIO实现临时内存文件访问的方法。分享给大家供大家参考。具体分析如下：
如果希望从网络读取文件进行处理，但是又不希望保存文件到硬盘，可以使用cStringIO模块进行处理
res = urllib2.urlopen(pic,timeout=10) f = cStringIO.StringIO(res.read())
f 是一个文件对象，
它和：f = open('c:/1.jpg','rw') 打开的文件一样
可以向操作本地文件一样对内存文件进行读写
希望本文所述对大家的Python程序设计有所帮助。
Is Tuple Comprehension possible in Python? If yes, how and if not why?Apr 28, 2025 pm 04:34 PMArticle discusses impossibility of tuple comprehension in Python due to syntax ambiguity. Alternatives like using tuple() with generator expressions are suggested for creating tuples efficiently.(159 characters)
What are Modules and Packages in Python?Apr 28, 2025 pm 04:33 PMThe article explains modules and packages in Python, their differences, and usage. Modules are single files, while packages are directories with an __init__.py file, organizing related modules hierarchically.
What is docstring in Python?Apr 28, 2025 pm 04:30 PMArticle discusses docstrings in Python, their usage, and benefits. Main issue: importance of docstrings for code documentation and accessibility.
What is a lambda function?Apr 28, 2025 pm 04:28 PMArticle discusses lambda functions, their differences from regular functions, and their utility in programming scenarios. Not all languages support them.
What is a break, continue and pass in Python?Apr 28, 2025 pm 04:26 PMArticle discusses break, continue, and pass in Python, explaining their roles in controlling loop execution and program flow.
What is a pass in Python?Apr 28, 2025 pm 04:25 PMThe article discusses the 'pass' statement in Python, a null operation used as a placeholder in code structures like functions and classes, allowing for future implementation without syntax errors.
Can we Pass a function as an argument in Python?Apr 28, 2025 pm 04:23 PMArticle discusses passing functions as arguments in Python, highlighting benefits like modularity and use cases such as sorting and decorators.
What is the difference between / and // in Python?Apr 28, 2025 pm 04:21 PMArticle discusses / and // operators in Python: / for true division, // for floor division. Main issue is understanding their differences and use cases.Character count: 158
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.
EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function
SublimeText3 Chinese version
Chinese version, very easy to use
ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment
SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
