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PyPI version

pycodestyle_magic

Magic function for pycodestyle and flake8 module in Jupyter-Lab or Notebook

installation

Make sure you've the Python package pycodestyle, flake8 and this pycodestyle_magic.

pip install flake8 pycodestyle_magic

configuration

Flake8 and pycodestyle will discover and manage user configuration files (stored in a user's home directory or in the XDG directory inside their home directory) or project configuration files (stored in the current directory). See their respective docs for specific details on configuration file naming, syntax, and location.

Additionally, Flake8 cell magic ignores four codes by default:

  • W292 - no newline at end of file; not relevant in an iPython cell
  • W391 - blank line at end of file; not relevant in an iPython cell
  • F401 - module imported but unused; a module may be imported in one cell and used in another
  • F821 - undefined name name; a variable may be defined in one cell and used in another

usage

Enable the magic function by using the pycodestyle_magic module in a cell

%load_ext pycodestyle_magic

to check a cell once:

use the function as first line in your cell to check compliance with pycodestyle or flake8 as such:

%%pycodestyle

or for flake8

%%flake8

to auto check each cell (version >= 0.3):

If you want this compliance checking turned on by default for each cell then run this magic line function in an empty cell:

%pycodestyle_on

or for flake8

%flake8_on

You only need to call this once (observe the single %).

To turn off the auto-checking for each cell use:

%pycodestyle_off or %flake8_off

config options for %flake8_on (version >= 0.5)

  1. The option --ignore or -i will add the the named error(s) to the ignore list

Example to ignore the errors E225 and E265:

%flake8_on --ignore E225,E265

Remember to avoid spaces between declaring multiple errors.

  1. With the option --max_line_length or -m the max-line-length can be customised.

Example to set the line length to 119 characters instead of the default 79:

%flake8_on --max_line_length 119

The options can be combined as well.

See notebooks in notebook directory for example use cases, as such:

Pycodestyle (notebook)

alt text

Flake8 (notebook)

alt text

Examples notebooks were slightly adapted from https://github.com/SiggyF/notebooks/blob/master/styleguide.ipynb

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
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PyPI version

pycodestyle_magic

Magic function for pycodestyle and flake8 module in Jupyter-Lab or Notebook

installation

Make sure you've the Python package pycodestyle, flake8 and this pycodestyle_magic.

pip install flake8 pycodestyle_magic

configuration

Flake8 and pycodestyle will discover and manage user configuration files (stored in a user's home directory or in the XDG directory inside their home directory) or project configuration files (stored in the current directory). See their respective docs for specific details on configuration file naming, syntax, and location.

Additionally, Flake8 cell magic ignores four codes by default:

  • W292 - no newline at end of file; not relevant in an iPython cell
  • W391 - blank line at end of file; not relevant in an iPython cell
  • F401 - module imported but unused; a module may be imported in one cell and used in another
  • F821 - undefined name name; a variable may be defined in one cell and used in another

usage

Enable the magic function by using the pycodestyle_magic module in a cell

%load_ext pycodestyle_magic

to check a cell once:

use the function as first line in your cell to check compliance with pycodestyle or flake8 as such:

%%pycodestyle

or for flake8

%%flake8

to auto check each cell (version >= 0.3):

If you want this compliance checking turned on by default for each cell then run this magic line function in an empty cell:

%pycodestyle_on

or for flake8

%flake8_on

You only need to call this once (observe the single %).

To turn off the auto-checking for each cell use:

%pycodestyle_off or %flake8_off

config options for %flake8_on (version >= 0.5)

  1. The option --ignore or -i will add the the named error(s) to the ignore list

Example to ignore the errors E225 and E265:

%flake8_on --ignore E225,E265

Remember to avoid spaces between declaring multiple errors.

  1. With the option --max_line_length or -m the max-line-length can be customised.

Example to set the line length to 119 characters instead of the default 79:

%flake8_on --max_line_length 119

The options can be combined as well.

See notebooks in notebook directory for example use cases, as such:

Pycodestyle (notebook)

alt text

Flake8 (notebook)

alt text

Examples notebooks were slightly adapted from https://github.com/SiggyF/notebooks/blob/master/styleguide.ipynb

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magic functions for flake8 and pycodestyle module in Jupyter Lab and Notebook

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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PyPI version

pycodestyle_magic

Magic function for pycodestyle and flake8 module in Jupyter-Lab or Notebook

installation

Make sure you've the Python package pycodestyle, flake8 and this pycodestyle_magic.

pip install flake8 pycodestyle_magic

configuration

Flake8 and pycodestyle will discover and manage user configuration files (stored in a user's home directory or in the XDG directory inside their home directory) or project configuration files (stored in the current directory). See their respective docs for specific details on configuration file naming, syntax, and location.

Additionally, Flake8 cell magic ignores four codes by default:

  • W292 - no newline at end of file; not relevant in an iPython cell
  • W391 - blank line at end of file; not relevant in an iPython cell
  • F401 - module imported but unused; a module may be imported in one cell and used in another
  • F821 - undefined name name; a variable may be defined in one cell and used in another

usage

Enable the magic function by using the pycodestyle_magic module in a cell

%load_ext pycodestyle_magic

to check a cell once:

use the function as first line in your cell to check compliance with pycodestyle or flake8 as such:

%%pycodestyle

or for flake8

%%flake8

to auto check each cell (version >= 0.3):

If you want this compliance checking turned on by default for each cell then run this magic line function in an empty cell:

%pycodestyle_on

or for flake8

%flake8_on

You only need to call this once (observe the single %).

To turn off the auto-checking for each cell use:

%pycodestyle_off or %flake8_off

config options for %flake8_on (version >= 0.5)

  1. The option --ignore or -i will add the the named error(s) to the ignore list

Example to ignore the errors E225 and E265:

%flake8_on --ignore E225,E265

Remember to avoid spaces between declaring multiple errors.

  1. With the option --max_line_length or -m the max-line-length can be customised.

Example to set the line length to 119 characters instead of the default 79:

%flake8_on --max_line_length 119

The options can be combined as well.

See notebooks in notebook directory for example use cases, as such:

Pycodestyle (notebook)

alt text

Flake8 (notebook)

alt text

Examples notebooks were slightly adapted from https://github.com/SiggyF/notebooks/blob/master/styleguide.ipynb

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magic functions for flake8 and pycodestyle module in Jupyter Lab and Notebook

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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PyPI version

pycodestyle_magic

Magic function for pycodestyle and flake8 module in Jupyter-Lab or Notebook

installation

Make sure you've the Python package pycodestyle, flake8 and this pycodestyle_magic.

pip install flake8 pycodestyle_magic

configuration

Flake8 and pycodestyle will discover and manage user configuration files (stored in a user's home directory or in the XDG directory inside their home directory) or project configuration files (stored in the current directory). See their respective docs for specific details on configuration file naming, syntax, and location.

Additionally, Flake8 cell magic ignores four codes by default:

  • W292 - no newline at end of file; not relevant in an iPython cell
  • W391 - blank line at end of file; not relevant in an iPython cell
  • F401 - module imported but unused; a module may be imported in one cell and used in another
  • F821 - undefined name name; a variable may be defined in one cell and used in another

usage

Enable the magic function by using the pycodestyle_magic module in a cell

%load_ext pycodestyle_magic

to check a cell once:

use the function as first line in your cell to check compliance with pycodestyle or flake8 as such:

%%pycodestyle

or for flake8

%%flake8

to auto check each cell (version >= 0.3):

If you want this compliance checking turned on by default for each cell then run this magic line function in an empty cell:

%pycodestyle_on

or for flake8

%flake8_on

You only need to call this once (observe the single %).

To turn off the auto-checking for each cell use:

%pycodestyle_off or %flake8_off

config options for %flake8_on (version >= 0.5)

  1. The option --ignore or -i will add the the named error(s) to the ignore list

Example to ignore the errors E225 and E265:

%flake8_on --ignore E225,E265

Remember to avoid spaces between declaring multiple errors.

  1. With the option --max_line_length or -m the max-line-length can be customised.

Example to set the line length to 119 characters instead of the default 79:

%flake8_on --max_line_length 119

The options can be combined as well.

See notebooks in notebook directory for example use cases, as such:

Pycodestyle (notebook)

alt text

Flake8 (notebook)

alt text

Examples notebooks were slightly adapted from https://github.com/SiggyF/notebooks/blob/master/styleguide.ipynb

About

magic functions for flake8 and pycodestyle module in Jupyter Lab and Notebook

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3 watching

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
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PyPI version

pycodestyle_magic

Magic function for pycodestyle and flake8 module in Jupyter-Lab or Notebook

installation

Make sure you've the Python package pycodestyle, flake8 and this pycodestyle_magic.

pip install flake8 pycodestyle_magic

configuration

Flake8 and pycodestyle will discover and manage user configuration files (stored in a user's home directory or in the XDG directory inside their home directory) or project configuration files (stored in the current directory). See their respective docs for specific details on configuration file naming, syntax, and location.

Additionally, Flake8 cell magic ignores four codes by default:

  • W292 - no newline at end of file; not relevant in an iPython cell
  • W391 - blank line at end of file; not relevant in an iPython cell
  • F401 - module imported but unused; a module may be imported in one cell and used in another
  • F821 - undefined name name; a variable may be defined in one cell and used in another

usage

Enable the magic function by using the pycodestyle_magic module in a cell

%load_ext pycodestyle_magic

to check a cell once:

use the function as first line in your cell to check compliance with pycodestyle or flake8 as such:

%%pycodestyle

or for flake8

%%flake8

to auto check each cell (version >= 0.3):

If you want this compliance checking turned on by default for each cell then run this magic line function in an empty cell:

%pycodestyle_on

or for flake8

%flake8_on

You only need to call this once (observe the single %).

To turn off the auto-checking for each cell use:

%pycodestyle_off or %flake8_off

config options for %flake8_on (version >= 0.5)

  1. The option --ignore or -i will add the the named error(s) to the ignore list

Example to ignore the errors E225 and E265:

%flake8_on --ignore E225,E265

Remember to avoid spaces between declaring multiple errors.

  1. With the option --max_line_length or -m the max-line-length can be customised.

Example to set the line length to 119 characters instead of the default 79:

%flake8_on --max_line_length 119

The options can be combined as well.

See notebooks in notebook directory for example use cases, as such:

Pycodestyle (notebook)

alt text

Flake8 (notebook)

alt text

Examples notebooks were slightly adapted from https://github.com/SiggyF/notebooks/blob/master/styleguide.ipynb

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magic functions for flake8 and pycodestyle module in Jupyter Lab and Notebook

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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PyPI version

pycodestyle_magic

Magic function for pycodestyle and flake8 module in Jupyter-Lab or Notebook

installation

Make sure you've the Python package pycodestyle, flake8 and this pycodestyle_magic.

pip install flake8 pycodestyle_magic

configuration

Flake8 and pycodestyle will discover and manage user configuration files (stored in a user's home directory or in the XDG directory inside their home directory) or project configuration files (stored in the current directory). See their respective docs for specific details on configuration file naming, syntax, and location.

Additionally, Flake8 cell magic ignores four codes by default:

  • W292 - no newline at end of file; not relevant in an iPython cell
  • W391 - blank line at end of file; not relevant in an iPython cell
  • F401 - module imported but unused; a module may be imported in one cell and used in another
  • F821 - undefined name name; a variable may be defined in one cell and used in another

usage

Enable the magic function by using the pycodestyle_magic module in a cell

%load_ext pycodestyle_magic

to check a cell once:

use the function as first line in your cell to check compliance with pycodestyle or flake8 as such:

%%pycodestyle

or for flake8

%%flake8

to auto check each cell (version >= 0.3):

If you want this compliance checking turned on by default for each cell then run this magic line function in an empty cell:

%pycodestyle_on

or for flake8

%flake8_on

You only need to call this once (observe the single %).

To turn off the auto-checking for each cell use:

%pycodestyle_off or %flake8_off

config options for %flake8_on (version >= 0.5)

  1. The option --ignore or -i will add the the named error(s) to the ignore list

Example to ignore the errors E225 and E265:

%flake8_on --ignore E225,E265

Remember to avoid spaces between declaring multiple errors.

  1. With the option --max_line_length or -m the max-line-length can be customised.

Example to set the line length to 119 characters instead of the default 79:

%flake8_on --max_line_length 119

The options can be combined as well.

See notebooks in notebook directory for example use cases, as such:

Pycodestyle (notebook)

alt text

Flake8 (notebook)

alt text

Examples notebooks were slightly adapted from https://github.com/SiggyF/notebooks/blob/master/styleguide.ipynb

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magic functions for flake8 and pycodestyle module in Jupyter Lab and Notebook

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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PyPI version

pycodestyle_magic

Magic function for pycodestyle and flake8 module in Jupyter-Lab or Notebook

installation

Make sure you've the Python package pycodestyle, flake8 and this pycodestyle_magic.

pip install flake8 pycodestyle_magic

configuration

Flake8 and pycodestyle will discover and manage user configuration files (stored in a user's home directory or in the XDG directory inside their home directory) or project configuration files (stored in the current directory). See their respective docs for specific details on configuration file naming, syntax, and location.

Additionally, Flake8 cell magic ignores four codes by default:

  • W292 - no newline at end of file; not relevant in an iPython cell
  • W391 - blank line at end of file; not relevant in an iPython cell
  • F401 - module imported but unused; a module may be imported in one cell and used in another
  • F821 - undefined name name; a variable may be defined in one cell and used in another

usage

Enable the magic function by using the pycodestyle_magic module in a cell

%load_ext pycodestyle_magic

to check a cell once:

use the function as first line in your cell to check compliance with pycodestyle or flake8 as such:

%%pycodestyle

or for flake8

%%flake8

to auto check each cell (version >= 0.3):

If you want this compliance checking turned on by default for each cell then run this magic line function in an empty cell:

%pycodestyle_on

or for flake8

%flake8_on

You only need to call this once (observe the single %).

To turn off the auto-checking for each cell use:

%pycodestyle_off or %flake8_off

config options for %flake8_on (version >= 0.5)

  1. The option --ignore or -i will add the the named error(s) to the ignore list

Example to ignore the errors E225 and E265:

%flake8_on --ignore E225,E265

Remember to avoid spaces between declaring multiple errors.

  1. With the option --max_line_length or -m the max-line-length can be customised.

Example to set the line length to 119 characters instead of the default 79:

%flake8_on --max_line_length 119

The options can be combined as well.

See notebooks in notebook directory for example use cases, as such:

Pycodestyle (notebook)

alt text

Flake8 (notebook)

alt text

Examples notebooks were slightly adapted from https://github.com/SiggyF/notebooks/blob/master/styleguide.ipynb

About

magic functions for flake8 and pycodestyle module in Jupyter Lab and Notebook

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
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pycodestyle_magic

Magic function for pycodestyle and flake8 module in Jupyter-Lab or Notebook

installation

Make sure you've the Python package pycodestyle, flake8 and this pycodestyle_magic.

pip install flake8 pycodestyle_magic

configuration

Flake8 and pycodestyle will discover and manage user configuration files (stored in a user's home directory or in the XDG directory inside their home directory) or project configuration files (stored in the current directory). See their respective docs for specific details on configuration file naming, syntax, and location.

Additionally, Flake8 cell magic ignores four codes by default:

  • W292 - no newline at end of file; not relevant in an iPython cell
  • W391 - blank line at end of file; not relevant in an iPython cell
  • F401 - module imported but unused; a module may be imported in one cell and used in another
  • F821 - undefined name name; a variable may be defined in one cell and used in another

usage

Enable the magic function by using the pycodestyle_magic module in a cell

%load_ext pycodestyle_magic

to check a cell once:

use the function as first line in your cell to check compliance with pycodestyle or flake8 as such:

%%pycodestyle

or for flake8

%%flake8

to auto check each cell (version >= 0.3):

If you want this compliance checking turned on by default for each cell then run this magic line function in an empty cell:

%pycodestyle_on

or for flake8

%flake8_on

You only need to call this once (observe the single %).

To turn off the auto-checking for each cell use:

%pycodestyle_off or %flake8_off

config options for %flake8_on (version >= 0.5)

  1. The option --ignore or -i will add the the named error(s) to the ignore list

Example to ignore the errors E225 and E265:

%flake8_on --ignore E225,E265

Remember to avoid spaces between declaring multiple errors.

  1. With the option --max_line_length or -m the max-line-length can be customised.

Example to set the line length to 119 characters instead of the default 79:

%flake8_on --max_line_length 119

The options can be combined as well.

See notebooks in notebook directory for example use cases, as such:

Pycodestyle (notebook)

alt text

Flake8 (notebook)

alt text

Examples notebooks were slightly adapted from https://github.com/SiggyF/notebooks/blob/master/styleguide.ipynb

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magic functions for flake8 and pycodestyle module in Jupyter Lab and Notebook

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