Autosave: 2024-11-04 14:07:03

.neuron-generator/templates/head.html

@@ -28,7 +28,10 @@
 
   body blockquote {
     border-left-width: 3px !important;
+    border-left-color: #458588 !important;
+    background-color: #f2e5bc !important;
   }
+
   .headerFont,
   .ui.header,
   body h1,
@@ -37,20 +40,284 @@
   h4,
   h5,
   h6 {
-    font-family: "IBM Plex Sans Condensed" !important;
+    font-family: "IBM Plex Sans" !important;
   }
   body p {
-    line-height: 1.4;
+    /* line-height: 1.3; */
   }
+
   .monoFont,
   body code,
   pre,
   tt {
     font-family: "IBM Plex Mono" !important;
     font-size: 12px !important;
-    line-height: 1.4 !important;
+    /* line-height: 1.3 !important; */
   }
   img[alt~="not-by-ai-badge"] {
     width: 100px;
   }
+
+  #neuron-nav-bar {
+    background-color: #458588;
+  }
+
+  #neuron-nav-bar a.right {
+    display: none;
+  }
+
+  .ui .center img {
+    display: none;
+  }
+
+  body {
+    background-color: #ebdbb2 !important;
+    color: #282828;
+  }
+
+  .zettel-view article.zettel-content {
+    background-color: #f9f5d7 !important;
+  }
+  a,
+  body span.zettel-link-container span.zettel-link a,
+  body .deemphasized:not(:hover) a {
+    color: #458588 !important;
+  }
+
+  .deemphasized:not(:hover) a {
+    color: #458588 !important;
+  }
+
+  body .zettel-content h1#title-h1 {
+    background-color: #458588;
+    color: #f9f5d7;
+  }
+
+  .ui.raised.raised.segment,
+  .ui.raised.raised.segments {
+    box-shadow: none;
+  }
+
+  .ui.raised.attached.segment.zettel-content {
+    border: none;
+  }
+
+  #neuron-backlinks-pane,
+  #neuron-tags-pane {
+    background-color: #3c3836;
+    border: none;
+  }
+
+  #neuron-backlinks-pane h3.ui.header,
+  #neuron-backlinks-pane p,
+  #neuron-backlinks-pane > ul > li > ul > li > div {
+    color: #ebdbb2 !important;
+  }
+
+  #neuron-backlinks-pane ul li::marker {
+    color: #ebdbb2 !important;
+  }
+  #neuron-backlinks-pane > ul > li > ul > li > div > p > a,
+  #neuron-backlinks-pane ul li span.zettel-link a {
+    color: #83a598 !important;
+  }
+
+  body .deemphasized:not(:hover),
+  body .deemphasized:hover {
+    opacity: 1;
+  }
+
+  #neuron-nav-bar {
+    border-radius: 0;
+  }
+  .ui.basic.label.zettel-tag {
+    background-color: #458588;
+    border-radius: 0;
+    border: none;
+    color: #f9f5c7;
+  }
+
+  body div.zettel-view .zettel-content p code,
+  li code,
+  ol code {
+    padding: 0;
+    font-size: 13px !important;
+    background: transparent;
+  }
+
+  code[class*="language-"],
+  pre[class*="language-"] {
+    text-shadow: none;
+  }
+
+  .ui table {
+    background-color: #f9f5d7 !important;
+    border-radius: 0 !important;
+    border-color: #3c3836 !important;
+  }
+
+  .ui.table > thead > tr > th {
+    background-color: #3c3836 !important;
+    border-radius: 0 !important;
+    color: #f9f5d7 !important;
+  }
+
+  body span.zettel-link-container.errors {
+    border-color: #cc241d;
+  }
+
+  body span.zettel-link-container.errors span.zettel-link a {
+    color: #cc241d !important;
+  }
+
+  body span.zettel-link-container.errors span.zettel-link a:hover {
+    background-color: #fb483460 !important;
+  }
+
+  /**
+ * Gruvbox light theme
+ *
+ * Based on Gruvbox: https://github.com/morhetz/gruvbox
+ * Adapted from PrismJS gruvbox-dark theme: https://github.com/schnerring/prism-themes/blob/master/themes/prism-gruvbox-dark.css
+ *
+ * @author Michael Schnerring (https://schnerring.net)
+ * @version 1.0
+ */
+
+  code[class*="language-"],
+  pre[class*="language-"] {
+    color: #3c3836; /* fg1 / fg */
+    font-family: Consolas, Monaco, "Andale Mono", monospace;
+    direction: ltr;
+    text-align: left;
+    white-space: pre;
+    word-spacing: normal;
+    word-break: normal;
+    line-height: 1.5;
+
+    -moz-tab-size: 4;
+    -o-tab-size: 4;
+    tab-size: 4;
+
+    -webkit-hyphens: none;
+    -moz-hyphens: none;
+    -ms-hyphens: none;
+    hyphens: none;
+  }
+
+  pre[class*="language-"]::-moz-selection,
+  pre[class*="language-"] ::-moz-selection,
+  code[class*="language-"]::-moz-selection,
+  code[class*="language-"] ::-moz-selection {
+    color: #282828; /* fg0 */
+    background: #fbf1c7; /* bg4 */
+  }
+
+  pre[class*="language-"]::selection,
+  pre[class*="language-"] ::selection,
+  code[class*="language-"]::selection,
+  code[class*="language-"] ::selection {
+    color: #282828; /* fg0 */
+
+    background: #fbf1c7; /* bg4 */
+  }
+
+  /* Code blocks */
+  pre[class*="language-"] {
+    padding: 1em;
+    margin: 0.5em 0;
+    overflow: auto;
+  }
+
+  :not(pre) > code[class*="language-"],
+  pre[class*="language-"] {
+    background: #f9f5d7; /* bg4 */
+    border: 1px solid #a89984;
+  }
+
+  /* Inline code */
+  :not(pre) > code[class*="language-"] {
+    padding: 0.1em;
+    border-radius: 0.3em;
+  }
+
+  .token.comment,
+  .token.prolog,
+  .token.cdata {
+    color: #7c6f64; /* fg4 / gray1 */
+  }
+
+  .token.delimiter,
+  .token.boolean,
+  .token.keyword,
+  .token.selector,
+  .token.important,
+  .token.atrule {
+    color: #9d0006; /* red2 */
+  }
+
+  .token.operator,
+  .token.punctuation,
+  .token.attr-name {
+    color: #7c6f64; /* fg4 / gray1 */
+    background: transparent;
+  }
+
+  .token.tag,
+  .token.tag .punctuation,
+  .token.doctype,
+  .token.builtin {
+    color: #b57614; /* yellow2 */
+  }
+
+  .token.entity,
+  .token.number,
+  .token.symbol {
+    color: #8f3f71; /* purple2 */
+  }
+
+  .token.property,
+  .token.constant,
+  .token.variable {
+    color: #9d0006; /* red2 */
+  }
+
+  .token.string,
+  .token.char {
+    color: #797403; /* green2 */
+  }
+
+  .token.attr-value,
+  .token.attr-value .punctuation {
+    color: #7c6f64; /* fg4 / gray1 */
+  }
+
+  .token.url {
+    color: #797403; /* green2 */
+    text-decoration: underline;
+  }
+
+  .token.function {
+    color: #b57614; /* yellow2 */
+  }
+
+  .token.regex {
+    background: #797403; /* green2 */
+  }
+
+  .token.bold {
+    font-weight: bold;
+  }
+
+  .token.italic {
+    font-style: italic;
+  }
+
+  .token.inserted {
+    background: #7c6f64; /* fg4 / gray1 */
+  }
+
+  .token.deleted {
+    background: #9d0006; /* red2 */
+  }
 </style>

neuron/3e9c8244-6ff9-4b0e-85f5-e82db8665849/head.html

@@ -1,56 +0,0 @@
-<script
-  async=""
-  id="MathJax-script"
-  src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"
-></script>
-<link
-  href="https://cdnjs.cloudflare.com/ajax/libs/prism/1.23.0/themes/prism.min.css"
-  rel="stylesheet"
-/><link rel="preconnect" href="https://fonts.googleapis.com" /><link
-  rel="preconnect"
-  href="https://fonts.gstatic.com"
-  crossorigin
-/><link
-  href="https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;1,100;1,200;1,300;1,400;1,500;1,600;1,700&family=IBM+Plex+Sans+Condensed:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;1,100;1,200;1,300;1,400;1,500;1,600;1,700&family=IBM+Plex+Sans:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;1,100;1,200;1,300;1,400;1,500;1,600;1,700&family=IBM+Plex+Serif:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;1,100;1,200;1,300;1,400;1,500;1,600;1,700&display=swap"
-  rel="stylesheet"
-/>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.23.0/components/prism-core.min.js"></script>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.23.0/plugins/autoloader/prism-autoloader.min.js"></script>
-<style>
-  body .ui.container,
-  body ul {
-    font-family: "IBM Plex Sans" !important;
-  }
-  body h2,
-  body div.zettel-view .zettel-content h2 {
-    border-bottom: none !important;
-  }
-
-  body blockquote {
-    border-left-width: 3px !important;
-  }
-  .headerFont,
-  .ui.header,
-  body h1,
-  h2,
-  h3,
-  h4,
-  h5,
-  h6 {
-    font-family: "IBM Plex Sans Condensed" !important;
-  }
-  body p {
-    line-height: 1.4;
-  }
-  .monoFont,
-  body code,
-  pre,
-  tt {
-    font-family: "IBM Plex Mono" !important;
-    font-size: 12px !important;
-    line-height: 1.4 !important;
-  }
-  img[alt~="not-by-ai-badge"] {
-    width: 100px;
-  }
-</style>

neuron/cd6bdaba-031a-4daf-adf2-ef3b075243e6/Classes_in_Python.md

@@ -16,6 +16,18 @@ tags: [python, OOP]
   constructor. As long as they are defined in the constructor they are
   accessible.
 
+## Class properties
+
+In contrast to other languages, you do not need to declare any properties you
+wish to use in the class at the top before you can assign to them. This is true
+whether you define them in the constructor or not.
+
+Instead, you can create properties just by invoking `self.some_property_name` in
+the course of your code and Python will create the variable implicitly.
+
+For continuity with other languages you may however define them at the top of
+the class if you wish.
+
 ## Basic syntax
 
 ```py
@@ -82,8 +94,8 @@ class Person:
 
 ## Object references
 
-When you log a class you get a reference to its hexadecimal
-[memory](Memory.md) reference.
+When you log a class you get a reference to its hexadecimal [memory](Memory.md)
+reference.
 
 ```py
 p1 = Person('John', 36)
@@ -109,8 +121,7 @@ print(id(p2))
 
 ## Copying objects
 
-The same principle that applies to
-[copying functions](Functions_in_Python.md)
+The same principle that applies to [copying functions](Functions_in_Python.md)
 applies to copying objects created through classes: redeclaration results in a
 duplicate entity. Thus changes to the duplicate will affect the original.
 

neuron/cd6bdaba-031a-4daf-adf2-ef3b075243e6/File_operations_in_Python.md

@@ -22,3 +22,12 @@ os.rename('original-file-name.txt', 'new-file-name.txt')
 import os
 os.remove('file-name.txt')
 ```
+
+## Check file exists
+
+```python
+import os
+
+file_exists = os.exists('/file/path')
+
+```

neuron/cd6bdaba-031a-4daf-adf2-ef3b075243e6/head.html

@@ -0,0 +1,323 @@
+<script
+  async=""
+  id="MathJax-script"
+  src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"
+></script>
+<link
+  href="https://cdnjs.cloudflare.com/ajax/libs/prism/1.23.0/themes/prism.min.css"
+  rel="stylesheet"
+/><link rel="preconnect" href="https://fonts.googleapis.com" /><link
+  rel="preconnect"
+  href="https://fonts.gstatic.com"
+  crossorigin
+/><link
+  href="https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;1,100;1,200;1,300;1,400;1,500;1,600;1,700&family=IBM+Plex+Sans+Condensed:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;1,100;1,200;1,300;1,400;1,500;1,600;1,700&family=IBM+Plex+Sans:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;1,100;1,200;1,300;1,400;1,500;1,600;1,700&family=IBM+Plex+Serif:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;1,100;1,200;1,300;1,400;1,500;1,600;1,700&display=swap"
+  rel="stylesheet"
+/>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.23.0/components/prism-core.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.23.0/plugins/autoloader/prism-autoloader.min.js"></script>
+<style>
+  body .ui.container,
+  body ul {
+    font-family: "IBM Plex Sans" !important;
+  }
+  body h2,
+  body div.zettel-view .zettel-content h2 {
+    border-bottom: none !important;
+  }
+
+  body blockquote {
+    border-left-width: 3px !important;
+    border-left-color: #458588 !important;
+    background-color: #f2e5bc !important;
+  }
+
+  .headerFont,
+  .ui.header,
+  body h1,
+  h2,
+  h3,
+  h4,
+  h5,
+  h6 {
+    font-family: "IBM Plex Sans" !important;
+  }
+  body p {
+    /* line-height: 1.3; */
+  }
+
+  .monoFont,
+  body code,
+  pre,
+  tt {
+    font-family: "IBM Plex Mono" !important;
+    font-size: 12px !important;
+    /* line-height: 1.3 !important; */
+  }
+  img[alt~="not-by-ai-badge"] {
+    width: 100px;
+  }
+
+  #neuron-nav-bar {
+    background-color: #458588;
+  }
+
+  #neuron-nav-bar a.right {
+    display: none;
+  }
+
+  .ui .center img {
+    display: none;
+  }
+
+  body {
+    background-color: #ebdbb2 !important;
+    color: #282828;
+  }
+
+  .zettel-view article.zettel-content {
+    background-color: #f9f5d7 !important;
+  }
+  a,
+  body span.zettel-link-container span.zettel-link a,
+  body .deemphasized:not(:hover) a {
+    color: #458588 !important;
+  }
+
+  .deemphasized:not(:hover) a {
+    color: #458588 !important;
+  }
+
+  body .zettel-content h1#title-h1 {
+    background-color: #458588;
+    color: #f9f5d7;
+  }
+
+  .ui.raised.raised.segment,
+  .ui.raised.raised.segments {
+    box-shadow: none;
+  }
+
+  .ui.raised.attached.segment.zettel-content {
+    border: none;
+  }
+
+  #neuron-backlinks-pane,
+  #neuron-tags-pane {
+    background-color: #3c3836;
+    border: none;
+  }
+
+  #neuron-backlinks-pane h3.ui.header,
+  #neuron-backlinks-pane p,
+  #neuron-backlinks-pane > ul > li > ul > li > div {
+    color: #ebdbb2 !important;
+  }
+
+  #neuron-backlinks-pane ul li::marker {
+    color: #ebdbb2 !important;
+  }
+  #neuron-backlinks-pane > ul > li > ul > li > div > p > a,
+  #neuron-backlinks-pane ul li span.zettel-link a {
+    color: #83a598 !important;
+  }
+
+  body .deemphasized:not(:hover),
+  body .deemphasized:hover {
+    opacity: 1;
+  }
+
+  #neuron-nav-bar {
+    border-radius: 0;
+  }
+  .ui.basic.label.zettel-tag {
+    background-color: #458588;
+    border-radius: 0;
+    border: none;
+    color: #f9f5c7;
+  }
+
+  body div.zettel-view .zettel-content p code,
+  li code,
+  ol code {
+    padding: 0;
+    font-size: 13px !important;
+    background: transparent;
+  }
+
+  code[class*="language-"],
+  pre[class*="language-"] {
+    text-shadow: none;
+  }
+
+  .ui table {
+    background-color: #f9f5d7 !important;
+    border-radius: 0 !important;
+    border-color: #3c3836 !important;
+  }
+
+  .ui.table > thead > tr > th {
+    background-color: #3c3836 !important;
+    border-radius: 0 !important;
+    color: #f9f5d7 !important;
+  }
+
+  body span.zettel-link-container.errors {
+    border-color: #cc241d;
+  }
+
+  body span.zettel-link-container.errors span.zettel-link a {
+    color: #cc241d !important;
+  }
+
+  body span.zettel-link-container.errors span.zettel-link a:hover {
+    background-color: #fb483460 !important;
+  }
+
+  /**
+ * Gruvbox light theme
+ *
+ * Based on Gruvbox: https://github.com/morhetz/gruvbox
+ * Adapted from PrismJS gruvbox-dark theme: https://github.com/schnerring/prism-themes/blob/master/themes/prism-gruvbox-dark.css
+ *
+ * @author Michael Schnerring (https://schnerring.net)
+ * @version 1.0
+ */
+
+  code[class*="language-"],
+  pre[class*="language-"] {
+    color: #3c3836; /* fg1 / fg */
+    font-family: Consolas, Monaco, "Andale Mono", monospace;
+    direction: ltr;
+    text-align: left;
+    white-space: pre;
+    word-spacing: normal;
+    word-break: normal;
+    line-height: 1.5;
+
+    -moz-tab-size: 4;
+    -o-tab-size: 4;
+    tab-size: 4;
+
+    -webkit-hyphens: none;
+    -moz-hyphens: none;
+    -ms-hyphens: none;
+    hyphens: none;
+  }
+
+  pre[class*="language-"]::-moz-selection,
+  pre[class*="language-"] ::-moz-selection,
+  code[class*="language-"]::-moz-selection,
+  code[class*="language-"] ::-moz-selection {
+    color: #282828; /* fg0 */
+    background: #fbf1c7; /* bg4 */
+  }
+
+  pre[class*="language-"]::selection,
+  pre[class*="language-"] ::selection,
+  code[class*="language-"]::selection,
+  code[class*="language-"] ::selection {
+    color: #282828; /* fg0 */
+
+    background: #fbf1c7; /* bg4 */
+  }
+
+  /* Code blocks */
+  pre[class*="language-"] {
+    padding: 1em;
+    margin: 0.5em 0;
+    overflow: auto;
+  }
+
+  :not(pre) > code[class*="language-"],
+  pre[class*="language-"] {
+    background: #f9f5d7; /* bg4 */
+    border: 1px solid #a89984;
+  }
+
+  /* Inline code */
+  :not(pre) > code[class*="language-"] {
+    padding: 0.1em;
+    border-radius: 0.3em;
+  }
+
+  .token.comment,
+  .token.prolog,
+  .token.cdata {
+    color: #7c6f64; /* fg4 / gray1 */
+  }
+
+  .token.delimiter,
+  .token.boolean,
+  .token.keyword,
+  .token.selector,
+  .token.important,
+  .token.atrule {
+    color: #9d0006; /* red2 */
+  }
+
+  .token.operator,
+  .token.punctuation,
+  .token.attr-name {
+    color: #7c6f64; /* fg4 / gray1 */
+    background: transparent;
+  }
+
+  .token.tag,
+  .token.tag .punctuation,
+  .token.doctype,
+  .token.builtin {
+    color: #b57614; /* yellow2 */
+  }
+
+  .token.entity,
+  .token.number,
+  .token.symbol {
+    color: #8f3f71; /* purple2 */
+  }
+
+  .token.property,
+  .token.constant,
+  .token.variable {
+    color: #9d0006; /* red2 */
+  }
+
+  .token.string,
+  .token.char {
+    color: #797403; /* green2 */
+  }
+
+  .token.attr-value,
+  .token.attr-value .punctuation {
+    color: #7c6f64; /* fg4 / gray1 */
+  }
+
+  .token.url {
+    color: #797403; /* green2 */
+    text-decoration: underline;
+  }
+
+  .token.function {
+    color: #b57614; /* yellow2 */
+  }
+
+  .token.regex {
+    background: #797403; /* green2 */
+  }
+
+  .token.bold {
+    font-weight: bold;
+  }
+
+  .token.italic {
+    font-style: italic;
+  }
+
+  .token.inserted {
+    background: #7c6f64; /* fg4 / gray1 */
+  }
+
+  .token.deleted {
+    background: #9d0006; /* red2 */
+  }
+</style>

neuron/cd6bdaba-031a-4daf-adf2-ef3b075243e6/index.md

@@ -13,20 +13,20 @@ computer science.
 
 ![not-by-ai-badge](static/not-by-ai-alternative--light.svg)
  
-**Build ID:** 3e9c8244-6ff9-4b0e-85f5-e82db8665849
+**Build ID:** cd6bdaba-031a-4daf-adf2-ef3b075243e6
 
-**Published:** Fri 01 Nov 2024 16:51:34
+**Published:** Mon 04 Nov 2024 14:07:02
 
 ### Recent edits 
 
+- [[Classes_in_Python]] 
+- [[File_operations_in_Python]] 
 - [[Lists_in_Python]] 
 - [[Dictionaries_in_Python]] 
 - [[Bell_System]] 
 - [[Bolt_Beranek_and_Newman]] 
 - [[4da22434_from_ARPANET_to_Internet]] 
 - [[3f1b9fe5_motivation_Berners_Lee]] 
-- [[4a3dc316_key_figures_ARPANET]] 
-- [[82f9c228_dissolution_of_ARPANET]] 
 
 
 ### All notes (481) 

zk/Classes_in_Python.md

@@ -16,6 +16,18 @@ tags: [python, OOP]
   constructor. As long as they are defined in the constructor they are
   accessible.
 
+## Class properties
+
+In contrast to other languages, you do not need to declare any properties you
+wish to use in the class at the top before you can assign to them. This is true
+whether you define them in the constructor or not.
+
+Instead, you can create properties just by invoking `self.some_property_name` in
+the course of your code and Python will create the variable implicitly.
+
+For continuity with other languages you may however define them at the top of
+the class if you wish.
+
 ## Basic syntax
 
 ```py
@@ -82,8 +94,8 @@ class Person:
 
 ## Object references
 
-When you log a class you get a reference to its hexadecimal
-[memory](Memory.md) reference.
+When you log a class you get a reference to its hexadecimal [memory](Memory.md)
+reference.
 
 ```py
 p1 = Person('John', 36)
@@ -109,8 +121,7 @@ print(id(p2))
 
 ## Copying objects
 
-The same principle that applies to
-[copying functions](Functions_in_Python.md)
+The same principle that applies to [copying functions](Functions_in_Python.md)
 applies to copying objects created through classes: redeclaration results in a
 duplicate entity. Thus changes to the duplicate will affect the original.
 

zk/File_operations_in_Python.md

@@ -22,3 +22,12 @@ os.rename('original-file-name.txt', 'new-file-name.txt')
 import os
 os.remove('file-name.txt')
 ```
+
+## Check file exists
+
+```python
+import os
+
+file_exists = os.exists('/file/path')
+
+```