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linux - centos 7 下用 yum install 命令安裝python依賴包，一直提示“沒有可用軟件包”?

1. 在centos 7 系統(tǒng)下安裝python的依賴包：tops-python27，tops-python27-simplejson與tops-python27-requests，但是一直提示“沒有可用軟件包”？其他：...

From [Pythondiscussion group] 2017-04-18 09:43:46 0  2  1417

python - 如何讓電腦變卡？

我是windows桌面軟件的開發(fā)者，我發(fā)現(xiàn)了一個問題，如果windows幾天不關(guān)機，在運行一些軟件，會有些慢，即使用了清理釋放的相關(guān)軟件，也沒很大作用。重啟后即可消失。所以我想在開機的時候進入這種變慢環(huán)境，進行...

From [Pythondiscussion group] 2017-04-17 17:35:35 0  12  1412

How to use WeChat channel QR code?

Can we generate different event QR codes for different WeChat marketing activities, that is, generate differen...

From [Pythondiscussion group] 2019-02-28 13:29:14 0  2  1411

run python時出現(xiàn)ImportError: No module named win32gui 錯誤

剛開始接觸python，run一個程序時出現(xiàn)ImportError: No module named win32gui，后來在http://stackoverflow.com/questions/6624672/how-...

From [Pythondiscussion group] 2017-04-17 11:36:40 0  1  1410

Lambda表達式有何用處？如何使用？

Lambda表達式有何用處？如何使用？

From [Pythondiscussion group] 2017-02-28 09:15:04 0  2  1410

Python determines whether a variable exists

How to determine if a variable exists in Python? {Code...} This way, you can make a judgment before making a d...

From [Pythondiscussion group] 2017-07-05 10:35:30 0  1  1409

python 的注釋會占用內(nèi)存么？

昨天遇到一個過來給我們普及下 python ，過程中間他提到 python 里的注釋會占用更多內(nèi)存，用三個引號"""闊起來就不會了 我當(dāng)時感覺這個說法太過匪夷所思，就問是何緣故，可...

From [Pythondiscussion group] 2016-11-11 16:56:25 0  1  1409

I don't understand the little turtle's after-school exercises, why does a bug appear?

In the example, the little turtle has a variable named str, but in fact we found that the color of str seems t...

From [Pythondiscussion group] 2020-07-23 11:05:26 0  0  1408

python - 關(guān)于scrapy爬蟲AJAX頁面

問題：爬取信息頁面為：知乎話題廣場 當(dāng)點擊加載的時候，用Chrome 開發(fā)者工具，可以看到Network中，實際請求的鏈接為：FormData為：urlencode： 然后我的代碼為： {代碼...} 執(zhí)行爬蟲之后，返回...

From [Pythondiscussion group] 2017-04-17 17:44:32 0  4  1407

Does idel need to be downloaded separately?

Is idel automatically installed when installing Python? Yes: Where is the installation location of idel? No: H...

From [Pythondiscussion group] 2019-02-19 11:34:40 0  2  1405

python - Why is there no garbled Chinese in the normal output? After the zip function, there is a problem with Chinese programming unicode encoding. I traverse the output.

(www.sf.gg) is China's leading developer technology community. We hope to provide a pure, high-quality technic...

From [Pythondiscussion group] 2017-06-12 09:23:09 0  1  1403

網(wǎng)絡(luò)爬蟲 - python爬蟲爬取資料，是直接生成Excel文件還是存入Mysql有利于后期處理。

要處理的文件不多，就是幾萬條，都是些簡單的處理，Excel暫時也夠用。大概思路兩條： 1、python抓到的數(shù)據(jù)通過Python DB API 儲存到mysql中再做處理。2、直接把爬取到的資料用Phthon XlsxW...

From [Pythondiscussion group] 2017-04-18 10:20:34 0  8  1403

Python string case conversion problem

str.lower() strings are all lowercase. str.upper() string in all uppercase letters. {code...} How can I capita...

From [Pythondiscussion group] 2017-06-28 09:23:09 0  2  1402

When python refers to the getpass module, there is no response after entering the password and pressing Enter. It is executed in the pycharm software, but it is OK in the IDE that comes with python.

1. When python refers to the getpass module, there is no response after entering the password and pressing Ent...

From [Pythondiscussion group] 2017-06-14 10:51:39 0  2  1402

pip安裝python庫總是下載超時，有什么解決方法嗎？

如題，最近經(jīng)常出現(xiàn)下載超時的情況，怎么也安裝不了，有什么解決方法嗎？

From [Pythondiscussion group] 2017-04-17 11:18:34 0  11  1402