String, os commands

README.md

@@ -309,7 +309,7 @@ String
 ```python
 <list> = <str>.split()                       # Splits on one or more whitespace characters.
 <list> = <str>.split(sep=None, maxsplit=-1)  # Splits on 'sep' str at most 'maxsplit' times.
-<list> = <str>.splitlines(keepends=False)    # Splits on line breaks. Keeps them if 'keepends'.
+<list> = <str>.splitlines(keepends=False)    # Splits on \n,\r,\r\n. Keeps them if 'keepends'.
 <str>  = <str>.join(<coll_of_strings>)       # Joins elements using string as separator.
 ```
 
@@ -1676,19 +1676,19 @@ os.mkdir(<path>, mode=0o777)        # Creates a directory. Mode is in octal.
 ```
 
 ```python
-shutil.copy(from, to)               # Copies the file.
-shutil.copytree(from, to)           # Copies the directory.
+shutil.copy(from, to)               # Copies the file. 'to' can be a directory.
+shutil.copytree(from, to)           # Copies the directory. 'to' must not exist.
 ```
 
 ```python
-os.rename(from, to)                 # Renames or moves the file or directory.
+os.rename(from, to)                 # Renames/moves the file or directory.
 os.replace(from, to)                # Same, but overwrites 'to' if it exists.
 ```
 
 ```python
 os.remove(<path>)                   # Deletes the file.
 os.rmdir(<path>)                    # Deletes the empty directory.
-shutil.rmtree(<path>)               # Deletes the non-empty directory.
+shutil.rmtree(<path>)               # Deletes the directory.
 ```
 
 ### Shell Commands

index.html

@@ -426,7 +426,7 @@ to_exclusive   = <range>.stop
 
 <pre><code class="python language-python hljs">&lt;list&gt; = &lt;str&gt;.split()                       <span class="hljs-comment"># Splits on one or more whitespace characters.</span>
 &lt;list&gt; = &lt;str&gt;.split(sep=<span class="hljs-keyword">None</span>, maxsplit=<span class="hljs-number">-1</span>)  <span class="hljs-comment"># Splits on 'sep' str at most 'maxsplit' times.</span>
-&lt;list&gt; = &lt;str&gt;.splitlines(keepends=<span class="hljs-keyword">False</span>)    <span class="hljs-comment"># Splits on line breaks. Keeps them if 'keepends'.</span>
+&lt;list&gt; = &lt;str&gt;.splitlines(keepends=<span class="hljs-keyword">False</span>)    <span class="hljs-comment"># Splits on \n,\r,\r\n. Keeps them if 'keepends'.</span>
 &lt;str&gt;  = &lt;str&gt;.join(&lt;coll_of_strings&gt;)       <span class="hljs-comment"># Joins elements using string as separator.</span>
 </code></pre>
 <pre><code class="python language-python hljs">&lt;bool&gt; = &lt;sub_str&gt; <span class="hljs-keyword">in</span> &lt;str&gt;                  <span class="hljs-comment"># Checks if string contains a substring.</span>
@@ -1526,15 +1526,15 @@ value = args.&lt;name&gt;
 <pre><code class="python language-python hljs">os.chdir(&lt;path&gt;)                    <span class="hljs-comment"># Changes current working directory.</span>
 os.mkdir(&lt;path&gt;, mode=<span class="hljs-number">0o777</span>)        <span class="hljs-comment"># Creates a directory. Mode is in octal.</span>
 </code></pre>
-<pre><code class="python language-python hljs">shutil.copy(from, to)               <span class="hljs-comment"># Copies the file.</span>
-shutil.copytree(from, to)           <span class="hljs-comment"># Copies the directory.</span>
+<pre><code class="python language-python hljs">shutil.copy(from, to)               <span class="hljs-comment"># Copies the file. 'to' can be a directory.</span>
+shutil.copytree(from, to)           <span class="hljs-comment"># Copies the directory. 'to' must not exist.</span>
 </code></pre>
-<pre><code class="python language-python hljs">os.rename(from, to)                 <span class="hljs-comment"># Renames or moves the file or directory.</span>
+<pre><code class="python language-python hljs">os.rename(from, to)                 <span class="hljs-comment"># Renames/moves the file or directory.</span>
 os.replace(from, to)                <span class="hljs-comment"># Same, but overwrites 'to' if it exists.</span>
 </code></pre>
 <pre><code class="python language-python hljs">os.remove(&lt;path&gt;)                   <span class="hljs-comment"># Deletes the file.</span>
 os.rmdir(&lt;path&gt;)                    <span class="hljs-comment"># Deletes the empty directory.</span>
-shutil.rmtree(&lt;path&gt;)               <span class="hljs-comment"># Deletes the non-empty directory.</span>
+shutil.rmtree(&lt;path&gt;)               <span class="hljs-comment"># Deletes the directory.</span>
 </code></pre>
 <div><h3 id="shellcommands">Shell Commands</h3><pre><code class="python language-python hljs"><span class="hljs-keyword">import</span> os
 &lt;str&gt; = os.popen(<span class="hljs-string">'&lt;shell_command&gt;'</span>).read()

parse.js

@@ -34,12 +34,12 @@ const TOC =
   '</code></pre>\n';
 
 const OS_RENAME =
-  'os.rename(from, to)                 <span class="hljs-comment"># Renames or moves the file or directory.</span>\n' +
+  'os.rename(from, to)                 <span class="hljs-comment"># Renames/moves the file or directory.</span>\n' +
   'os.replace(from, to)                <span class="hljs-comment"># Same, but overwrites \'to\' if it exists.</span>\n';
 
 const SHUTIL_COPY = 
-  'shutil.copy(from, to)               <span class="hljs-comment"># Copies the file.</span>\n' +
-  'shutil.copytree(from, to)           <span class="hljs-comment"># Copies the directory.</span>\n';
+  'shutil.copy(from, to)               <span class="hljs-comment"># Copies the file. \'to\' can be a directory.</span>\n' +
+  'shutil.copytree(from, to)           <span class="hljs-comment"># Copies the directory. \'to\' must not exist.</span>\n';
 
 const EVAL =
   '<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">from</span> ast <span class="hljs-keyword">import</span> literal_eval\n' +