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python-cheatsheet
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Grammar fixes

pull/52/head
Jure Šorn 5 years ago
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2 changed files with 11 additions and 11 deletions
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  1. 10
      README.md
  2. 12
      index.html

10
README.md
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@ -378,7 +378,7 @@ import re
### Special Sequences
* **By default digits, whitespaces and alphanumerics from all alphabets are matched, unless `'flags=re.ASCII'` argument is used.**
* **Use capital letter for negation.**
* **Use a capital letter for negation.**
```python
'\d' == '[0-9]' # Matches any digit.
'\w' == '[a-zA-Z0-9_]' # Matches any alphanumeric.
@ -1686,14 +1686,14 @@ import os
<str> = os.popen('<shell_command>').read()
```
#### Sends '1 + 1' to calculator and captures its output:
#### Sends '1 + 1' to a calculator and captures its output:
```python
>>> from subprocess import run
>>> run('bc', input='1 + 1\n', capture_output=True, encoding='utf-8')
CompletedProcess(args='bc', returncode=0, stdout='2\n', stderr='')
```
#### Sends 'test.in' to calculator running in standard mode and saves its output to 'test.out':
#### Sends 'test.in' to a calculator running in standard mode and saves its output to 'test.out':
```python
>>> from shlex import split
>>> os.popen('echo 1 + 1 > test.in')
@ -1952,7 +1952,7 @@ b'\x00\x01\x00\x02\x00\x00\x00\x03'
* **`'<'` - little-endian**
* **`'>'` - big-endian (also `'!'`)**
#### Integer types. Use capital letter for unsigned type. Standard sizes are in brackets:
#### Integer types. Use a capital letter for unsigned type. Standard sizes are in brackets:
* **`'x'` - pad byte**
* **`'b'` - char (1)**
* **`'h'` - short (2)**
@ -2575,7 +2575,7 @@ indexes = <array>.argmin(axis)
```
* **Shape is a tuple of dimension sizes.**
* **Axis is the index of a dimension that gets collapsed. Leftmost dimension has index 0.**
* **Axis is the index of a dimension that gets collapsed. The leftmost dimension has index 0.**
### Indexing
```bash

12
index.html
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@ -483,7 +483,7 @@ to_exclusive = &lt;range&gt;.stop
<div><h3 id="specialsequences">Special Sequences</h3><ul>
<li><strong>By default digits, whitespaces and alphanumerics from all alphabets are matched, unless <code class="python hljs"><span class="hljs-string">'flags=re.ASCII'</span></code> argument is used.</strong></li>
<li><strong>Use capital letter for negation.</strong></li>
<li><strong>Use a capital letter for negation.</strong></li>
</ul><pre><code class="python language-python hljs"><span class="hljs-string">'\d'</span> == <span class="hljs-string">'[0-9]'</span> <span class="hljs-comment"># Matches any digit.</span>
<span class="hljs-string">'\w'</span> == <span class="hljs-string">'[a-zA-Z0-9_]'</span> <span class="hljs-comment"># Matches any alphanumeric.</span>
<span class="hljs-string">'\s'</span> == <span class="hljs-string">'[ \t\n\r\f\v]'</span> <span class="hljs-comment"># Matches any whitespace.</span>
@ -1529,12 +1529,12 @@ shutil.rmtree(&lt;path&gt;) <span class="hljs-comment"># Deletes n
&lt;str&gt; = os.popen(<span class="hljs-string">'&lt;shell_command&gt;'</span>).read()
</code></pre></div>
<div><h4 id="sends11tocalculatorandcapturesitsoutput">Sends '1 + 1' to calculator and captures its output:</h4><pre><code class="python language-python hljs"><span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">from</span> subprocess <span class="hljs-keyword">import</span> run
<div><h4 id="sends11toacalculatorandcapturesitsoutput">Sends '1 + 1' to a calculator and captures its output:</h4><pre><code class="python language-python hljs"><span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">from</span> subprocess <span class="hljs-keyword">import</span> run
<span class="hljs-meta">&gt;&gt;&gt; </span>run(<span class="hljs-string">'bc'</span>, input=<span class="hljs-string">'1 + 1\n'</span>, capture_output=<span class="hljs-keyword">True</span>, encoding=<span class="hljs-string">'utf-8'</span>)
CompletedProcess(args=<span class="hljs-string">'bc'</span>, returncode=<span class="hljs-number">0</span>, stdout=<span class="hljs-string">'2\n'</span>, stderr=<span class="hljs-string">''</span>)
</code></pre></div>
<div><h4 id="sendstestintocalculatorrunninginstandardmodeandsavesitsoutputtotestout">Sends 'test.in' to calculator running in standard mode and saves its output to 'test.out':</h4><pre><code class="python language-python hljs"><span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">from</span> shlex <span class="hljs-keyword">import</span> split
<div><h4 id="sendstestintoacalculatorrunninginstandardmodeandsavesitsoutputtotestout">Sends 'test.in' to a calculator running in standard mode and saves its output to 'test.out':</h4><pre><code class="python language-python hljs"><span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">from</span> shlex <span class="hljs-keyword">import</span> split
<span class="hljs-meta">&gt;&gt;&gt; </span>os.popen(<span class="hljs-string">'echo 1 + 1 &gt; test.in'</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>run(split(<span class="hljs-string">'bc -s'</span>), stdin=open(<span class="hljs-string">'test.in'</span>), stdout=open(<span class="hljs-string">'test.out'</span>, <span class="hljs-string">'w'</span>))
CompletedProcess(args=[<span class="hljs-string">'bc'</span>, <span class="hljs-string">'-s'</span>], returncode=<span class="hljs-number">0</span>)
@ -1728,14 +1728,14 @@ db = connector.connect(host=&lt;str&gt;, user=&lt;str&gt;, password=&lt;str&gt;,
<li><strong><code class="python hljs"><span class="hljs-string">'='</span></code> - native byte order</strong></li>
<li><strong><code class="python hljs"><span class="hljs-string">'&lt;'</span></code> - little-endian</strong></li>
<li><strong><code class="python hljs"><span class="hljs-string">'&gt;'</span></code> - big-endian (also <code class="python hljs"><span class="hljs-string">'!'</span></code>)</strong></li>
</ul></div><div><h4 id="integertypesusecapitalletterforunsignedtypestandardsizesareinbrackets">Integer types. Use capital letter for unsigned type. Standard sizes are in brackets:</h4><ul>
</ul><div><h4 id="integertypesuseacapitalletterforunsignedtypestandardsizesareinbrackets">Integer types. Use a capital letter for unsigned type. Standard sizes are in brackets:</h4><ul>
<li><strong><code class="python hljs"><span class="hljs-string">'x'</span></code> - pad byte</strong></li>
<li><strong><code class="python hljs"><span class="hljs-string">'b'</span></code> - char (1)</strong></li>
<li><strong><code class="python hljs"><span class="hljs-string">'h'</span></code> - short (2)</strong></li>
<li><strong><code class="python hljs"><span class="hljs-string">'i'</span></code> - int (4)</strong></li>
<li><strong><code class="python hljs"><span class="hljs-string">'l'</span></code> - long (4)</strong></li>
<li><strong><code class="python hljs"><span class="hljs-string">'q'</span></code> - long long (8)</strong></li>
</ul></div><div><h4 id="floatingpointtypes">Floating point types:</h4><ul>
</ul></div></div><div><h4 id="floatingpointtypes">Floating point types:</h4><ul>
<li><strong><code class="python hljs"><span class="hljs-string">'f'</span></code> - float (4)</strong></li>
<li><strong><code class="python hljs"><span class="hljs-string">'d'</span></code> - double (8)</strong></li>
</ul></div>
@ -2204,7 +2204,7 @@ indexes = &lt;array&gt;.argmin(axis)
</code></pre>
<ul>
<li><strong>Shape is a tuple of dimension sizes.</strong></li>
<li><strong>Axis is the index of a dimension that gets collapsed. Leftmost dimension has index 0.</strong></li>
<li><strong>Axis is the index of a dimension that gets collapsed. The leftmost dimension has index 0.</strong></li>
</ul>
<div><h3 id="indexing">Indexing</h3><pre><code class="bash language-bash hljs">&lt;el&gt; = &lt;2d_array&gt;[0, 0] <span class="hljs-comment"># First element.</span>
&lt;1d_view&gt; = &lt;2d_array&gt;[0] <span class="hljs-comment"># First row.</span>

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