https://w.electrodragon.com/w/index.php?action=history&feed=atom&title=Category%3APython 2026-07-22T07:41:43Z Revision history for this page on the wiki MediaWiki 1.37.2 https://w.electrodragon.com/w/index.php?title=Category:Python&diff=30803&oldid=prev 2021-04-28T16:09:41Z

<p><span dir="auto"><span class="autocomment">Module/Library</span></span></p> <p><b>New page</b></p><div>== Sub-category ==<br /> * [[Micropython]]<br /> == Basic==<br /> {| class=&quot;wikitable sortable&quot;<br /> |-<br /> ! Command !! description!! example !! Header text<br /> |-<br /> | comment || # for line, &quot;&quot;&quot; and &quot;&quot;&quot; for paragraph || Example || Example<br /> |-<br /> | print || Example || print(&quot;234&quot;) # print string; print 234 # print variable|| Example<br /> |-<br /> | linux bash run || #! /usr/bin/python || Example || Example<br /> |-<br /> | Example || Example || Example || Example<br /> |}<br /> <br /> == file operation ==<br /> &lt;syntaxhighlight lang=&quot;python&quot;&gt;<br /> myfile = open('/srv/www/idehe.com/stock/data.txt', 'w')<br /> myfile.writelines('\n') <br /> myfile.close()<br /> <br /> myfile = open('/srv/www/idehe.com/stock/data.txt', 'a') # open for output (creates)<br /> myfile.writelines('\n')<br /> myfile.writelines(line1) # write a line of text<br /> myfile.writelines('\n') <br /> myfile.writelines(line2) # write a line of text<br /> myfile.close()<br /> &lt;/syntaxhighlight&gt;<br /> <br /> == Operation ==<br /> not is evaluated first; and is evaluated next; or is evaluated last.<br /> <br /> == Group, List, Dict==<br /> * group = (), list = [], dict = {}<br /> === List ===<br /> * L[2] 'SPAM!' read the third element<br /> * L[-2] 'Spam' red the last third element<br /> * L[1:] ['Spam', 'SPAM!'] cut the list from the second element<br /> <br /> == Pratical Test ==<br /> * for loop<br /> for x in range (xxx, 0, -1):<br /> <br /> == Project ==<br /> install/unstall a library, first install pip: apt-get install python-pip<br /> pip install datetime<br /> pip uninstall datetime <br /> common used library<br /> * Datetime<br /> * Django<br /> === Kivy ===<br /> ==== For android ====<br /> * install debian jessie, install python-kivy, python-pip<br /> * install buildozer (pip install), java SDK (default-jdk), cython, etc<br /> * buildozer init, and run: buildozer set default android_new debug deploy run, android USB debug should turn on<br /> * buildozer need ANT, SDK, NDK on first time<br /> <br /> ==== Other ====<br /> * [[python-web]]<br /> <br /> == Reference ==<br /> * https://www.codecademy.com/learn<br /> * symbol review: http://learnpythonthehardway.org/book/ex37.html<br /> <br /> <br /> <br /> Python<br /> * [https://www.python.org/downloads/release/python-352/ Python 3.52 download page here.]<br /> <br /> == For Raspberry Pi ==<br /> SPIDEV<br /> * sudo apt-get install python-dev<br /> Image <br /> sudo apt-get install python-imaging<br /> [[category: Language]]</div>

Chao