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Logging, Web, Image

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Jure Šorn 1 year ago
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  1. 66
      README.md
  2. 70
      index.html
  3. 8
      parse.js

66
README.md
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@ -1500,7 +1500,7 @@ Exit
import sys import sys
sys.exit() # Exits with exit code 0 (success). sys.exit() # Exits with exit code 0 (success).
sys.exit(<el>) # Prints to stderr and exits with 1. sys.exit(<el>) # Prints to stderr and exits with 1.
sys.exit(<int>) # Exits with passed exit code.
sys.exit(<int>) # Exits with the passed exit code.
``` ```
@ -2463,7 +2463,7 @@ logging.debug/info/warning/error/critical(<str>) # Logs to the root logger.
### Setup ### Setup
```python ```python
logging.basicConfig( logging.basicConfig(
filename=None, # Logs to console by default.
filename=None, # Logs to console (stderr) by default.
format='%(levelname)s:%(name)s:%(message)s', # Add `%(asctime)s` for datetime. format='%(levelname)s:%(name)s:%(message)s', # Add `%(asctime)s` for datetime.
level=logging.WARNING, # Drops messages with lower priority. level=logging.WARNING, # Drops messages with lower priority.
handlers=[logging.StreamHandler()] # Uses FileHandler if filename is set. handlers=[logging.StreamHandler()] # Uses FileHandler if filename is set.
@ -2482,7 +2482,7 @@ logging.basicConfig(
* **Formatter also supports: pathname, filename, funcName, lineno, thread and process.** * **Formatter also supports: pathname, filename, funcName, lineno, thread and process.**
* **A `'handlers.RotatingFileHandler'` creates and deletes log files based on 'maxBytes' and 'backupCount' arguments.** * **A `'handlers.RotatingFileHandler'` creates and deletes log files based on 'maxBytes' and 'backupCount' arguments.**
#### Creates a logger that writes all messages to a file and sends them to the root logger that prints to stdout:
#### Creates a logger that writes all messages to a file and sends them to the root logger that prints to stderr:
```python ```python
>>> logging.basicConfig(level='WARNING') >>> logging.basicConfig(level='WARNING')
>>> logger = logging.getLogger('my_module') >>> logger = logging.getLogger('my_module')
@ -2527,11 +2527,11 @@ Web
**Flask is a micro web framework/server. If you just want to open a html file in a web browser use `'webbrowser.open(<path>)'` instead.** **Flask is a micro web framework/server. If you just want to open a html file in a web browser use `'webbrowser.open(<path>)'` instead.**
```python ```python
# $ pip3 install flask # $ pip3 install flask
from flask import Flask, send_from_directory, render_template_string, request
import flask
``` ```
```python ```python
app = Flask(__name__)
app = flask.Flask(__name__)
app.run(host=None, port=None, debug=None) app.run(host=None, port=None, debug=None)
``` ```
* **Starts the app at `'http://localhost:5000'`. Use `'host="0.0.0.0"'` to run externally.** * **Starts the app at `'http://localhost:5000'`. Use `'host="0.0.0.0"'` to run externally.**
@ -2542,14 +2542,14 @@ app.run(host=None, port=None, debug=None)
```python ```python
@app.route('/img/<path:filename>') @app.route('/img/<path:filename>')
def serve_file(filename): def serve_file(filename):
return send_from_directory('dirname/', filename)
return flask.send_from_directory('dirname/', filename)
``` ```
### Dynamic Request ### Dynamic Request
```python ```python
@app.route('/<sport>') @app.route('/<sport>')
def serve_html(sport): def serve_html(sport):
return render_template_string('<h1>{{title}}</h1>', title=sport)
return flask.render_template_string('<h1>{{title}}</h1>', title=sport)
``` ```
* **To return an error code use `'abort(<int>)'` and to redirect use `'redirect(<url>)'`.** * **To return an error code use `'abort(<int>)'` and to redirect use `'redirect(<url>)'`.**
* **`'request.args[<str>]'` returns parameter from the query string (URL part after '?').** * **`'request.args[<str>]'` returns parameter from the query string (URL part after '?').**
@ -2559,7 +2559,7 @@ def serve_html(sport):
```python ```python
@app.post('/<sport>/odds') @app.post('/<sport>/odds')
def serve_json(sport): def serve_json(sport):
team = request.form['team']
team = flask.request.form['team']
return {'team': team, 'odds': [2.09, 3.74, 3.68]} return {'team': team, 'odds': [2.09, 3.74, 3.68]}
``` ```
@ -2749,37 +2749,36 @@ Image
----- -----
```python ```python
# $ pip3 install pillow # $ pip3 install pillow
from PIL import Image, ImageDraw
from PIL import Image, ImageFilter, ImageEnhance
``` ```
```python ```python
<Image> = Image.new('<mode>', (width, height)) # Also `color=<int/tuple/str>`.
<Image> = Image.open(<path>) # Identifies format based on file contents.
<Image> = <Image>.convert('<mode>') # Converts image to the new mode.
<Image>.save(<path>) # Selects format based on the path extension.
<Image>.show() # Opens image in the default preview app.
<Image> = Image.new('<mode>', (width, height)) # Also `color=<int/tuple/str>`.
<Image> = Image.open(<path>) # Identifies format based on file contents.
<Image> = <Image>.convert('<mode>') # Converts image to the new mode.
<Image>.save(<path>) # Selects format based on the path extension.
<Image>.show() # Opens image in the default preview app.
``` ```
```python ```python
<int/tuple> = <Image>.getpixel((x, y)) # Returns a pixel.
<Image>.putpixel((x, y), <int/tuple>) # Writes a pixel to the image.
<ImagingCore> = <Image>.getdata() # Returns a flattened view of the pixels.
<Image>.putdata(<list/ImagingCore>) # Writes a flattened sequence of pixels.
<Image>.paste(<Image>, (x, y)) # Writes passed image to the image.
<int/tuple> = <Image>.getpixel((x, y)) # Returns a pixel.
<Image>.putpixel((x, y), <int/tuple>) # Writes a pixel to the image.
<ImagingCore> = <Image>.getdata() # Returns a flattened view of the pixels.
<Image>.putdata(<list/ImagingCore>) # Writes a flattened sequence of pixels.
<Image>.paste(<Image>, (x, y)) # Writes passed image to the image.
``` ```
```python ```python
<Image> = <Image>.filter(<Filter>) # `<Filter> = ImageFilter.<name>([<args>])`
<Image> = <Enhance>.enhance(<float>) # `<Enhance> = ImageEnhance.<name>(<Image>)`
<Image> = <Image>.filter(<Filter>) # `<Filter> = ImageFilter.<name>([<args>])`
<Image> = <Enhance>.enhance(<float>) # `<Enhance> = ImageEnhance.<name>(<Image>)`
``` ```
```python ```python
<array> = np.array(<Image>) # Creates NumPy array from the image.
<Image> = Image.fromarray(np.uint8(<array>)) # Use <array>.clip(0, 255) to clip the values.
<array> = np.array(<Image>) # Creates NumPy array from the image.
<Image> = Image.fromarray(np.uint8(<array>)) # Use <array>.clip(0, 255) to clip values.
``` ```
### Modes ### Modes
* **`'1'` - 1-bit pixels, black and white, stored with one pixel per byte.**
* **`'L'` - 8-bit pixels, greyscale.** * **`'L'` - 8-bit pixels, greyscale.**
* **`'RGB'` - 3x8-bit pixels, true color.** * **`'RGB'` - 3x8-bit pixels, true color.**
* **`'RGBA'` - 4x8-bit pixels, true color with transparency mask.** * **`'RGBA'` - 4x8-bit pixels, true color with transparency mask.**
@ -2807,14 +2806,15 @@ img.show()
### Image Draw ### Image Draw
```python ```python
<ImageDraw> = ImageDraw.Draw(<Image>) # Object for adding 2D graphics to the image.
<ImageDraw>.point((x, y)) # Draws a point. Truncates floats into ints.
<ImageDraw>.line((x1, y1, x2, y2 [, ...])) # To get anti-aliasing use Image's resize().
<ImageDraw>.arc((x1, y1, x2, y2), deg1, deg2) # Always draws in clockwise direction.
<ImageDraw>.rectangle((x1, y1, x2, y2)) # To rotate use Image's rotate() and paste().
<ImageDraw>.polygon((x1, y1, x2, y2, ...)) # Last point gets connected to the first.
<ImageDraw>.ellipse((x1, y1, x2, y2)) # To rotate use Image's rotate() and paste().
<ImageDraw>.text((x, y), text, font=<Font>) # `<Font> = ImageFont.truetype(<path>, size)`
from PIL import ImageDraw, ImageFont
<ImageDraw> = ImageDraw.Draw(<Image>) # Object for adding 2D graphics to the image.
<ImageDraw>.point((x, y)) # Draws a point. Truncates floats into ints.
<ImageDraw>.line((x1, y1, x2, y2 [, ...])) # To get anti-aliasing use Image's resize().
<ImageDraw>.arc((x1, y1, x2, y2), deg1, deg2) # Always draws in clockwise direction.
<ImageDraw>.rectangle((x1, y1, x2, y2)) # To rotate use Image's rotate() and paste().
<ImageDraw>.polygon((x1, y1, x2, y2, ...)) # Last point gets connected to the first.
<ImageDraw>.ellipse((x1, y1, x2, y2)) # To rotate use Image's rotate() and paste().
<ImageDraw>.text((x, y), text, font=<Font>) # `<Font> = ImageFont.truetype(<path>, size)`
``` ```
* **Use `'fill=<color>'` to set the primary color.** * **Use `'fill=<color>'` to set the primary color.**
* **Use `'width=<int>'` to set the width of lines or contours.** * **Use `'width=<int>'` to set the width of lines or contours.**
@ -3545,7 +3545,7 @@ $ python3 -m venv <name> # Creates virtual environment in current directory
$ source <name>/bin/activate # Activates venv. On Windows run `<name>\Scripts\activate`. $ source <name>/bin/activate # Activates venv. On Windows run `<name>\Scripts\activate`.
$ pip3 install <library> # Installs the library into active environment. $ pip3 install <library> # Installs the library into active environment.
$ python3 <path> # Runs the script in active environment. Also `./<path>`. $ python3 <path> # Runs the script in active environment. Also `./<path>`.
$ deactivate # Deactivates virtual environment.
$ deactivate # Deactivates the active virtual environment.
``` ```
### Basic Script Template ### Basic Script Template

70
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@ -54,7 +54,7 @@
<body> <body>
<header> <header>
<aside>August 4, 2023</aside>
<aside>August 24, 2023</aside>
<a href="https://gto76.github.io" rel="author">Jure Šorn</a> <a href="https://gto76.github.io" rel="author">Jure Šorn</a>
</header> </header>
@ -1278,7 +1278,7 @@ error_msg = <span class="hljs-string">''</span>.join(traceback.format_exception(
<div><h2 id="exit"><a href="#exit" name="exit">#</a>Exit</h2><p><strong>Exits the interpreter by raising SystemExit exception.</strong></p><pre><code class="python language-python hljs"><span class="hljs-keyword">import</span> sys <div><h2 id="exit"><a href="#exit" name="exit">#</a>Exit</h2><p><strong>Exits the interpreter by raising SystemExit exception.</strong></p><pre><code class="python language-python hljs"><span class="hljs-keyword">import</span> sys
sys.exit() <span class="hljs-comment"># Exits with exit code 0 (success).</span> sys.exit() <span class="hljs-comment"># Exits with exit code 0 (success).</span>
sys.exit(&lt;el&gt;) <span class="hljs-comment"># Prints to stderr and exits with 1.</span> sys.exit(&lt;el&gt;) <span class="hljs-comment"># Prints to stderr and exits with 1.</span>
sys.exit(&lt;int&gt;) <span class="hljs-comment"># Exits with passed exit code.</span>
sys.exit(&lt;int&gt;) <span class="hljs-comment"># Exits with the passed exit code.</span>
</code></pre></div> </code></pre></div>
@ -2021,7 +2021,7 @@ logging.debug/info/warning/error/critical(&lt;str&gt;) <span class="hljs-commen
&lt;Logger&gt;.exception(&lt;str&gt;) <span class="hljs-comment"># Calls error() with caught exception.</span> &lt;Logger&gt;.exception(&lt;str&gt;) <span class="hljs-comment"># Calls error() with caught exception.</span>
</code></pre> </code></pre>
<div><h3 id="setup">Setup</h3><pre><code class="python language-python hljs">logging.basicConfig( <div><h3 id="setup">Setup</h3><pre><code class="python language-python hljs">logging.basicConfig(
filename=<span class="hljs-keyword">None</span>, <span class="hljs-comment"># Logs to console by default.</span>
filename=<span class="hljs-keyword">None</span>, <span class="hljs-comment"># Logs to console (stderr) by default.</span>
format=<span class="hljs-string">'%(levelname)s:%(name)s:%(message)s'</span>, <span class="hljs-comment"># Add `%(asctime)s` for datetime.</span> format=<span class="hljs-string">'%(levelname)s:%(name)s:%(message)s'</span>, <span class="hljs-comment"># Add `%(asctime)s` for datetime.</span>
level=logging.WARNING, <span class="hljs-comment"># Drops messages with lower priority.</span> level=logging.WARNING, <span class="hljs-comment"># Drops messages with lower priority.</span>
handlers=[logging.StreamHandler()] <span class="hljs-comment"># Uses FileHandler if filename is set.</span> handlers=[logging.StreamHandler()] <span class="hljs-comment"># Uses FileHandler if filename is set.</span>
@ -2040,7 +2040,7 @@ logging.debug/info/warning/error/critical(&lt;str&gt;) <span class="hljs-commen
<li><strong>Formatter also supports: pathname, filename, funcName, lineno, thread and process.</strong></li> <li><strong>Formatter also supports: pathname, filename, funcName, lineno, thread and process.</strong></li>
<li><strong>A <code class="python hljs"><span class="hljs-string">'handlers.RotatingFileHandler'</span></code> creates and deletes log files based on 'maxBytes' and 'backupCount' arguments.</strong></li> <li><strong>A <code class="python hljs"><span class="hljs-string">'handlers.RotatingFileHandler'</span></code> creates and deletes log files based on 'maxBytes' and 'backupCount' arguments.</strong></li>
</ul> </ul>
<div><h4 id="createsaloggerthatwritesallmessagestoafileandsendsthemtotherootloggerthatprintstostdout">Creates a logger that writes all messages to a file and sends them to the root logger that prints to stdout:</h4><pre><code class="python language-python hljs"><span class="hljs-meta">&gt;&gt;&gt; </span>logging.basicConfig(level=<span class="hljs-string">'WARNING'</span>)
<div><h4 id="createsaloggerthatwritesallmessagestoafileandsendsthemtotherootloggerthatprintstostderr">Creates a logger that writes all messages to a file and sends them to the root logger that prints to stderr:</h4><pre><code class="python language-python hljs"><span class="hljs-meta">&gt;&gt;&gt; </span>logging.basicConfig(level=<span class="hljs-string">'WARNING'</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>logger = logging.getLogger(<span class="hljs-string">'my_module'</span>) <span class="hljs-meta">&gt;&gt;&gt; </span>logger = logging.getLogger(<span class="hljs-string">'my_module'</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>handler = logging.FileHandler(<span class="hljs-string">'test.log'</span>) <span class="hljs-meta">&gt;&gt;&gt; </span>handler = logging.FileHandler(<span class="hljs-string">'test.log'</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>formatter = logging.Formatter(<span class="hljs-string">'%(asctime)s %(levelname)s:%(name)s:%(message)s'</span>) <span class="hljs-meta">&gt;&gt;&gt; </span>formatter = logging.Formatter(<span class="hljs-string">'%(asctime)s %(levelname)s:%(name)s:%(message)s'</span>)
@ -2074,11 +2074,11 @@ WIKI_URL = <span class="hljs-string">'https://en.wikipedia.org/wiki/Python_(prog
<div><h2 id="web"><a href="#web" name="web">#</a>Web</h2><p><strong>Flask is a micro web framework/server. If you just want to open a html file in a web browser use <code class="python hljs"><span class="hljs-string">'webbrowser.open(&lt;path&gt;)'</span></code> instead.</strong></p><pre><code class="python language-python hljs"><span class="hljs-comment"># $ pip3 install flask</span> <div><h2 id="web"><a href="#web" name="web">#</a>Web</h2><p><strong>Flask is a micro web framework/server. If you just want to open a html file in a web browser use <code class="python hljs"><span class="hljs-string">'webbrowser.open(&lt;path&gt;)'</span></code> instead.</strong></p><pre><code class="python language-python hljs"><span class="hljs-comment"># $ pip3 install flask</span>
<span class="hljs-keyword">from</span> flask <span class="hljs-keyword">import</span> Flask, send_from_directory, render_template_string, request
<span class="hljs-keyword">import</span> flask
</code></pre></div> </code></pre></div>
<pre><code class="python language-python hljs">app = Flask(__name__)
<pre><code class="python language-python hljs">app = flask.Flask(__name__)
app.run(host=<span class="hljs-keyword">None</span>, port=<span class="hljs-keyword">None</span>, debug=<span class="hljs-keyword">None</span>) app.run(host=<span class="hljs-keyword">None</span>, port=<span class="hljs-keyword">None</span>, debug=<span class="hljs-keyword">None</span>)
</code></pre> </code></pre>
<ul> <ul>
@ -2088,12 +2088,12 @@ app.run(host=<span class="hljs-keyword">None</span>, port=<span class="hljs-keyw
</ul> </ul>
<div><h3 id="staticrequest">Static Request</h3><pre><code class="python language-python hljs"><span class="hljs-meta">@app.route('/img/&lt;path:filename&gt;')</span> <div><h3 id="staticrequest">Static Request</h3><pre><code class="python language-python hljs"><span class="hljs-meta">@app.route('/img/&lt;path:filename&gt;')</span>
<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">serve_file</span><span class="hljs-params">(filename)</span>:</span> <span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">serve_file</span><span class="hljs-params">(filename)</span>:</span>
<span class="hljs-keyword">return</span> send_from_directory(<span class="hljs-string">'dirname/'</span>, filename)
<span class="hljs-keyword">return</span> flask.send_from_directory(<span class="hljs-string">'dirname/'</span>, filename)
</code></pre></div> </code></pre></div>
<div><h3 id="dynamicrequest">Dynamic Request</h3><pre><code class="python language-python hljs"><span class="hljs-meta">@app.route('/&lt;sport&gt;')</span> <div><h3 id="dynamicrequest">Dynamic Request</h3><pre><code class="python language-python hljs"><span class="hljs-meta">@app.route('/&lt;sport&gt;')</span>
<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">serve_html</span><span class="hljs-params">(sport)</span>:</span> <span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">serve_html</span><span class="hljs-params">(sport)</span>:</span>
<span class="hljs-keyword">return</span> render_template_string(<span class="hljs-string">'&lt;h1&gt;{{title}}&lt;/h1&gt;'</span>, title=sport)
<span class="hljs-keyword">return</span> flask.render_template_string(<span class="hljs-string">'&lt;h1&gt;{{title}}&lt;/h1&gt;'</span>, title=sport)
</code></pre></div> </code></pre></div>
<ul> <ul>
@ -2103,7 +2103,7 @@ app.run(host=<span class="hljs-keyword">None</span>, port=<span class="hljs-keyw
</ul> </ul>
<div><h3 id="restrequest">REST Request</h3><pre><code class="python language-python hljs"><span class="hljs-meta">@app.post('/&lt;sport&gt;/odds')</span> <div><h3 id="restrequest">REST Request</h3><pre><code class="python language-python hljs"><span class="hljs-meta">@app.post('/&lt;sport&gt;/odds')</span>
<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">serve_json</span><span class="hljs-params">(sport)</span>:</span> <span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">serve_json</span><span class="hljs-params">(sport)</span>:</span>
team = request.form[<span class="hljs-string">'team'</span>]
team = flask.request.form[<span class="hljs-string">'team'</span>]
<span class="hljs-keyword">return</span> {<span class="hljs-string">'team'</span>: team, <span class="hljs-string">'odds'</span>: [<span class="hljs-number">2.09</span>, <span class="hljs-number">3.74</span>, <span class="hljs-number">3.68</span>]} <span class="hljs-keyword">return</span> {<span class="hljs-string">'team'</span>: team, <span class="hljs-string">'odds'</span>: [<span class="hljs-number">2.09</span>, <span class="hljs-number">3.74</span>, <span class="hljs-number">3.68</span>]}
</code></pre></div> </code></pre></div>
@ -2249,29 +2249,28 @@ right = [[<span class="hljs-number">0.1</span>, <span class="hljs-number">0.6</
<div><h2 id="image"><a href="#image" name="image">#</a>Image</h2><pre><code class="python language-python hljs"><span class="hljs-comment"># $ pip3 install pillow</span> <div><h2 id="image"><a href="#image" name="image">#</a>Image</h2><pre><code class="python language-python hljs"><span class="hljs-comment"># $ pip3 install pillow</span>
<span class="hljs-keyword">from</span> PIL <span class="hljs-keyword">import</span> Image, ImageDraw
<span class="hljs-keyword">from</span> PIL <span class="hljs-keyword">import</span> Image, ImageFilter, ImageEnhance
</code></pre></div> </code></pre></div>
<pre><code class="python language-python hljs">&lt;Image&gt; = Image.new(<span class="hljs-string">'&lt;mode&gt;'</span>, (width, height)) <span class="hljs-comment"># Also `color=&lt;int/tuple/str&gt;`.</span>
&lt;Image&gt; = Image.open(&lt;path&gt;) <span class="hljs-comment"># Identifies format based on file contents.</span>
&lt;Image&gt; = &lt;Image&gt;.convert(<span class="hljs-string">'&lt;mode&gt;'</span>) <span class="hljs-comment"># Converts image to the new mode.</span>
&lt;Image&gt;.save(&lt;path&gt;) <span class="hljs-comment"># Selects format based on the path extension.</span>
&lt;Image&gt;.show() <span class="hljs-comment"># Opens image in the default preview app.</span>
<pre><code class="python language-python hljs">&lt;Image&gt; = Image.new(<span class="hljs-string">'&lt;mode&gt;'</span>, (width, height)) <span class="hljs-comment"># Also `color=&lt;int/tuple/str&gt;`.</span>
&lt;Image&gt; = Image.open(&lt;path&gt;) <span class="hljs-comment"># Identifies format based on file contents.</span>
&lt;Image&gt; = &lt;Image&gt;.convert(<span class="hljs-string">'&lt;mode&gt;'</span>) <span class="hljs-comment"># Converts image to the new mode.</span>
&lt;Image&gt;.save(&lt;path&gt;) <span class="hljs-comment"># Selects format based on the path extension.</span>
&lt;Image&gt;.show() <span class="hljs-comment"># Opens image in the default preview app.</span>
</code></pre> </code></pre>
<pre><code class="python language-python hljs">&lt;int/tuple&gt; = &lt;Image&gt;.getpixel((x, y)) <span class="hljs-comment"># Returns a pixel.</span>
&lt;Image&gt;.putpixel((x, y), &lt;int/tuple&gt;) <span class="hljs-comment"># Writes a pixel to the image.</span>
&lt;ImagingCore&gt; = &lt;Image&gt;.getdata() <span class="hljs-comment"># Returns a flattened view of the pixels.</span>
&lt;Image&gt;.putdata(&lt;list/ImagingCore&gt;) <span class="hljs-comment"># Writes a flattened sequence of pixels.</span>
&lt;Image&gt;.paste(&lt;Image&gt;, (x, y)) <span class="hljs-comment"># Writes passed image to the image.</span>
<pre><code class="python language-python hljs">&lt;int/tuple&gt; = &lt;Image&gt;.getpixel((x, y)) <span class="hljs-comment"># Returns a pixel.</span>
&lt;Image&gt;.putpixel((x, y), &lt;int/tuple&gt;) <span class="hljs-comment"># Writes a pixel to the image.</span>
&lt;ImagingCore&gt; = &lt;Image&gt;.getdata() <span class="hljs-comment"># Returns a flattened view of the pixels.</span>
&lt;Image&gt;.putdata(&lt;list/ImagingCore&gt;) <span class="hljs-comment"># Writes a flattened sequence of pixels.</span>
&lt;Image&gt;.paste(&lt;Image&gt;, (x, y)) <span class="hljs-comment"># Writes passed image to the image.</span>
</code></pre> </code></pre>
<pre><code class="python language-python hljs">&lt;Image&gt; = &lt;Image&gt;.filter(&lt;Filter&gt;) <span class="hljs-comment"># `&lt;Filter&gt; = ImageFilter.&lt;name&gt;([&lt;args&gt;])`</span>
&lt;Image&gt; = &lt;Enhance&gt;.enhance(&lt;float&gt;) <span class="hljs-comment"># `&lt;Enhance&gt; = ImageEnhance.&lt;name&gt;(&lt;Image&gt;)`</span>
<pre><code class="python language-python hljs">&lt;Image&gt; = &lt;Image&gt;.filter(&lt;Filter&gt;) <span class="hljs-comment"># `&lt;Filter&gt; = ImageFilter.&lt;name&gt;([&lt;args&gt;])`</span>
&lt;Image&gt; = &lt;Enhance&gt;.enhance(&lt;float&gt;) <span class="hljs-comment"># `&lt;Enhance&gt; = ImageEnhance.&lt;name&gt;(&lt;Image&gt;)`</span>
</code></pre> </code></pre>
<pre><code class="python language-python hljs">&lt;array&gt; = np.array(&lt;Image&gt;) <span class="hljs-comment"># Creates NumPy array from the image.</span>
&lt;Image&gt; = Image.fromarray(np.uint8(&lt;array&gt;)) <span class="hljs-comment"># Use &lt;array&gt;.clip(0, 255) to clip the values.</span>
<pre><code class="python language-python hljs">&lt;array&gt; = np.array(&lt;Image&gt;) <span class="hljs-comment"># Creates NumPy array from the image.</span>
&lt;Image&gt; = Image.fromarray(np.uint8(&lt;array&gt;)) <span class="hljs-comment"># Use &lt;array&gt;.clip(0, 255) to clip values.</span>
</code></pre> </code></pre>
<div><h3 id="modes-1">Modes</h3><ul> <div><h3 id="modes-1">Modes</h3><ul>
<li><strong><code class="python hljs"><span class="hljs-string">'1'</span></code> - 1-bit pixels, black and white, stored with one pixel per byte.</strong></li>
<li><strong><code class="python hljs"><span class="hljs-string">'L'</span></code> - 8-bit pixels, greyscale.</strong></li> <li><strong><code class="python hljs"><span class="hljs-string">'L'</span></code> - 8-bit pixels, greyscale.</strong></li>
<li><strong><code class="python hljs"><span class="hljs-string">'RGB'</span></code> - 3x8-bit pixels, true color.</strong></li> <li><strong><code class="python hljs"><span class="hljs-string">'RGB'</span></code> - 3x8-bit pixels, true color.</strong></li>
<li><strong><code class="python hljs"><span class="hljs-string">'RGBA'</span></code> - 4x8-bit pixels, true color with transparency mask.</strong></li> <li><strong><code class="python hljs"><span class="hljs-string">'RGBA'</span></code> - 4x8-bit pixels, true color with transparency mask.</strong></li>
@ -2294,14 +2293,15 @@ img.putdata([(add_noise(h), s, v) <span class="hljs-keyword">for</span> h, s, v
img.show() img.show()
</code></pre></div> </code></pre></div>
<div><h3 id="imagedraw">Image Draw</h3><pre><code class="python language-python hljs">&lt;ImageDraw&gt; = ImageDraw.Draw(&lt;Image&gt;) <span class="hljs-comment"># Object for adding 2D graphics to the image.</span>
&lt;ImageDraw&gt;.point((x, y)) <span class="hljs-comment"># Draws a point. Truncates floats into ints.</span>
&lt;ImageDraw&gt;.line((x1, y1, x2, y2 [, ...])) <span class="hljs-comment"># To get anti-aliasing use Image's resize().</span>
&lt;ImageDraw&gt;.arc((x1, y1, x2, y2), deg1, deg2) <span class="hljs-comment"># Always draws in clockwise direction.</span>
&lt;ImageDraw&gt;.rectangle((x1, y1, x2, y2)) <span class="hljs-comment"># To rotate use Image's rotate() and paste().</span>
&lt;ImageDraw&gt;.polygon((x1, y1, x2, y2, ...)) <span class="hljs-comment"># Last point gets connected to the first.</span>
&lt;ImageDraw&gt;.ellipse((x1, y1, x2, y2)) <span class="hljs-comment"># To rotate use Image's rotate() and paste().</span>
&lt;ImageDraw&gt;.text((x, y), text, font=&lt;Font&gt;) <span class="hljs-comment"># `&lt;Font&gt; = ImageFont.truetype(&lt;path&gt;, size)`</span>
<div><h3 id="imagedraw">Image Draw</h3><pre><code class="python language-python hljs"><span class="hljs-keyword">from</span> PIL <span class="hljs-keyword">import</span> ImageDraw, ImageFont
&lt;ImageDraw&gt; = ImageDraw.Draw(&lt;Image&gt;) <span class="hljs-comment"># Object for adding 2D graphics to the image.</span>
&lt;ImageDraw&gt;.point((x, y)) <span class="hljs-comment"># Draws a point. Truncates floats into ints.</span>
&lt;ImageDraw&gt;.line((x1, y1, x2, y2 [, ...])) <span class="hljs-comment"># To get anti-aliasing use Image's resize().</span>
&lt;ImageDraw&gt;.arc((x1, y1, x2, y2), deg1, deg2) <span class="hljs-comment"># Always draws in clockwise direction.</span>
&lt;ImageDraw&gt;.rectangle((x1, y1, x2, y2)) <span class="hljs-comment"># To rotate use Image's rotate() and paste().</span>
&lt;ImageDraw&gt;.polygon((x1, y1, x2, y2, ...)) <span class="hljs-comment"># Last point gets connected to the first.</span>
&lt;ImageDraw&gt;.ellipse((x1, y1, x2, y2)) <span class="hljs-comment"># To rotate use Image's rotate() and paste().</span>
&lt;ImageDraw&gt;.text((x, y), text, font=&lt;Font&gt;) <span class="hljs-comment"># `&lt;Font&gt; = ImageFont.truetype(&lt;path&gt;, size)`</span>
</code></pre></div> </code></pre></div>
<ul> <ul>
@ -2890,7 +2890,7 @@ cdef &lt;ctype/void&gt; &lt;func_name&gt;(&lt;ctype&gt; &lt;arg_name&gt;): ...
$ <span class="hljs-built_in">source</span> &lt;name&gt;/bin/activate <span class="hljs-comment"># Activates venv. On Windows run `&lt;name&gt;\Scripts\activate`.</span> $ <span class="hljs-built_in">source</span> &lt;name&gt;/bin/activate <span class="hljs-comment"># Activates venv. On Windows run `&lt;name&gt;\Scripts\activate`.</span>
$ pip3 install &lt;library&gt; <span class="hljs-comment"># Installs the library into active environment.</span> $ pip3 install &lt;library&gt; <span class="hljs-comment"># Installs the library into active environment.</span>
$ python3 &lt;path&gt; <span class="hljs-comment"># Runs the script in active environment. Also `./&lt;path&gt;`.</span> $ python3 &lt;path&gt; <span class="hljs-comment"># Runs the script in active environment. Also `./&lt;path&gt;`.</span>
$ deactivate <span class="hljs-comment"># Deactivates virtual environment.</span>
$ deactivate <span class="hljs-comment"># Deactivates the active virtual environment.</span>
</code></pre></div> </code></pre></div>
@ -2930,7 +2930,7 @@ $ deactivate <span class="hljs-comment"># Deactivates virtual e
<footer> <footer>
<aside>August 4, 2023</aside>
<aside>August 24, 2023</aside>
<a href="https://gto76.github.io" rel="author">Jure Šorn</a> <a href="https://gto76.github.io" rel="author">Jure Šorn</a>
</footer> </footer>

8
parse.js
View File

@ -294,13 +294,6 @@ const MARIO =
'<span class="hljs-keyword">if</span> __name__ == <span class="hljs-string">\'__main__\'</span>:\n' + '<span class="hljs-keyword">if</span> __name__ == <span class="hljs-string">\'__main__\'</span>:\n' +
' main()\n'; ' main()\n';
const PYINSTALLER =
'$ pip3 install pyinstaller\n' +
'$ pyinstaller script.py <span class="hljs-comment"># Compiles into \'./dist/script\' directory.</span>\n' +
'$ pyinstaller script.py --onefile <span class="hljs-comment"># Compiles into \'./dist/script\' console app.</span>\n' +
'$ pyinstaller script.py --windowed <span class="hljs-comment"># Compiles into \'./dist/script\' windowed app.</span>\n' +
'$ pyinstaller script.py --add-data \'&lt;path&gt;:.\' <span class="hljs-comment"># Adds file to the root of the executable.</span>\n';
const INDEX = const INDEX =
'<li><strong>Only available in the <a href="https://transactions.sendowl.com/products/78175486/4422834F/view">PDF</a>.</strong></li>\n' + '<li><strong>Only available in the <a href="https://transactions.sendowl.com/products/78175486/4422834F/view">PDF</a>.</strong></li>\n' +
'<li><strong>Ctrl+F / ⌘F is usually sufficient.</strong></li>\n' + '<li><strong>Ctrl+F / ⌘F is usually sufficient.</strong></li>\n' +
@ -823,7 +816,6 @@ function fixHighlights() {
$(`code:contains(>>> logging.basicConfig(level=)`).html(LOGGING_EXAMPLE); $(`code:contains(>>> logging.basicConfig(level=)`).html(LOGGING_EXAMPLE);
$(`code:contains(samples_f = (sin(i *)`).html(AUDIO); $(`code:contains(samples_f = (sin(i *)`).html(AUDIO);
$(`code:contains(collections, dataclasses, enum, io, itertools)`).html(MARIO); $(`code:contains(collections, dataclasses, enum, io, itertools)`).html(MARIO);
$(`code:contains(pip3 install pyinstaller)`).html(PYINSTALLER);
$(`ul:contains(Only available in)`).html(INDEX); $(`ul:contains(Only available in)`).html(INDEX);
} }

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