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Parse or generate NDEF messages

Python PackageLatest DocumentationBuild StatusCode Coverage

The ndeflib is an ISC-licensed Python package for parsing and generating NFC Data Exchange Format (NDEF) messages:

>>> import ndef
>>> hexstr ='9101085402656e48656c6c6f5101085402656e576f726c64'
>>> octets =bytearray.fromhex(hexstr)
>>> for record in ndef.message_decoder(octets): print(record)
NDEF Text Record ID '' Text 'Hello' Language 'en' Encoding 'UTF-8'
NDEF Text Record ID '' Text 'World' Language 'en' Encoding 'UTF-8'
>>> message = [ndef.TextRecord("Hello"), ndef.TextRecord("World")]
>>> b''.join(ndef.message_encoder(message)) == octets
True

The ndeflib documentation can be found on Read the Docs, the code on GitHub. It is continously tested for Python 2.7 and 3.5 with pretty complete test coverage.

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Python package for parsing and generating NFC Data Exchange Format messages.

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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" + '

Skip to content
BranchesTags
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Parse or generate NDEF messages
Python PackageLatest DocumentationBuild StatusCode Coverage
The ndeflib is an ISC-licensed Python package for parsing and generating NFC Data Exchange Format (NDEF) messages:
>>> import ndef
>>> hexstr ='9101085402656e48656c6c6f5101085402656e576f726c64'
>>> octets =bytearray.fromhex(hexstr)
>>> for record in ndef.message_decoder(octets): print(record)
NDEF Text Record ID '' Text 'Hello' Language 'en' Encoding 'UTF-8'
NDEF Text Record ID '' Text 'World' Language 'en' Encoding 'UTF-8'
>>> message = [ndef.TextRecord("Hello"), ndef.TextRecord("World")]
>>> b''.join(ndef.message_encoder(message)) == octets
True
The ndeflib documentation can be found on Read the Docs, the code on GitHub. It is continously tested for Python 2.7 and 3.5 with pretty complete test coverage.
About
Python package for parsing and generating NFC Data Exchange Format messages.
Topics
ndefndef-librarypythonpython-library
Resources
Readme
ISC license
Contributing
Contributing
Activity
Custom properties
Stars
69 stars
Watchers
3 watching
Forks
13 forks
Report repository
Releases
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Used by
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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('^' + ".*" + '

Skip to content
BranchesTags
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Parse or generate NDEF messages
Python PackageLatest DocumentationBuild StatusCode Coverage
The ndeflib is an ISC-licensed Python package for parsing and generating NFC Data Exchange Format (NDEF) messages:
>>> import ndef
>>> hexstr ='9101085402656e48656c6c6f5101085402656e576f726c64'
>>> octets =bytearray.fromhex(hexstr)
>>> for record in ndef.message_decoder(octets): print(record)
NDEF Text Record ID '' Text 'Hello' Language 'en' Encoding 'UTF-8'
NDEF Text Record ID '' Text 'World' Language 'en' Encoding 'UTF-8'
>>> message = [ndef.TextRecord("Hello"), ndef.TextRecord("World")]
>>> b''.join(ndef.message_encoder(message)) == octets
True
The ndeflib documentation can be found on Read the Docs, the code on GitHub. It is continously tested for Python 2.7 and 3.5 with pretty complete test coverage.
About
Python package for parsing and generating NFC Data Exchange Format messages.
Topics
ndefndef-librarypythonpython-library
Resources
Readme
ISC license
Contributing
Contributing
Activity
Custom properties
Stars
69 stars
Watchers
3 watching
Forks
13 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, '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('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Parse or generate NDEF messages
Python PackageLatest DocumentationBuild StatusCode Coverage
The ndeflib is an ISC-licensed Python package for parsing and generating NFC Data Exchange Format (NDEF) messages:
>>> import ndef
>>> hexstr ='9101085402656e48656c6c6f5101085402656e576f726c64'
>>> octets =bytearray.fromhex(hexstr)
>>> for record in ndef.message_decoder(octets): print(record)
NDEF Text Record ID '' Text 'Hello' Language 'en' Encoding 'UTF-8'
NDEF Text Record ID '' Text 'World' Language 'en' Encoding 'UTF-8'
>>> message = [ndef.TextRecord("Hello"), ndef.TextRecord("World")]
>>> b''.join(ndef.message_encoder(message)) == octets
True
The ndeflib documentation can be found on Read the Docs, the code on GitHub. It is continously tested for Python 2.7 and 3.5 with pretty complete test coverage.
About
Python package for parsing and generating NFC Data Exchange Format messages.
Topics
ndefndef-librarypythonpython-library
Resources
Readme
ISC license
Contributing
Contributing
Activity
Custom properties
Stars
69 stars
Watchers
3 watching
Forks
13 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, '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" + '

Skip to content
BranchesTags
Repository files navigation
Parse or generate NDEF messages
Python PackageLatest DocumentationBuild StatusCode Coverage
The ndeflib is an ISC-licensed Python package for parsing and generating NFC Data Exchange Format (NDEF) messages:
>>> import ndef
>>> hexstr ='9101085402656e48656c6c6f5101085402656e576f726c64'
>>> octets =bytearray.fromhex(hexstr)
>>> for record in ndef.message_decoder(octets): print(record)
NDEF Text Record ID '' Text 'Hello' Language 'en' Encoding 'UTF-8'
NDEF Text Record ID '' Text 'World' Language 'en' Encoding 'UTF-8'
>>> message = [ndef.TextRecord("Hello"), ndef.TextRecord("World")]
>>> b''.join(ndef.message_encoder(message)) == octets
True
The ndeflib documentation can be found on Read the Docs, the code on GitHub. It is continously tested for Python 2.7 and 3.5 with pretty complete test coverage.
About
Python package for parsing and generating NFC Data Exchange Format messages.
Topics
ndefndef-librarypythonpython-library
Resources
Readme
ISC license
Contributing
Contributing
Activity
Custom properties
Stars
69 stars
Watchers
3 watching
Forks
13 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, '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('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Parse or generate NDEF messages
Python PackageLatest DocumentationBuild StatusCode Coverage
The ndeflib is an ISC-licensed Python package for parsing and generating NFC Data Exchange Format (NDEF) messages:
>>> import ndef
>>> hexstr ='9101085402656e48656c6c6f5101085402656e576f726c64'
>>> octets =bytearray.fromhex(hexstr)
>>> for record in ndef.message_decoder(octets): print(record)
NDEF Text Record ID '' Text 'Hello' Language 'en' Encoding 'UTF-8'
NDEF Text Record ID '' Text 'World' Language 'en' Encoding 'UTF-8'
>>> message = [ndef.TextRecord("Hello"), ndef.TextRecord("World")]
>>> b''.join(ndef.message_encoder(message)) == octets
True
The ndeflib documentation can be found on Read the Docs, the code on GitHub. It is continously tested for Python 2.7 and 3.5 with pretty complete test coverage.
About
Python package for parsing and generating NFC Data Exchange Format messages.
Topics
ndefndef-librarypythonpython-library
Resources
Readme
ISC license
Contributing
Contributing
Activity
Custom properties
Stars
69 stars
Watchers
3 watching
Forks
13 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, '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('^' + ".*" + '

Skip to content
BranchesTags
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Parse or generate NDEF messages
Python PackageLatest DocumentationBuild StatusCode Coverage
The ndeflib is an ISC-licensed Python package for parsing and generating NFC Data Exchange Format (NDEF) messages:
>>> import ndef
>>> hexstr ='9101085402656e48656c6c6f5101085402656e576f726c64'
>>> octets =bytearray.fromhex(hexstr)
>>> for record in ndef.message_decoder(octets): print(record)
NDEF Text Record ID '' Text 'Hello' Language 'en' Encoding 'UTF-8'
NDEF Text Record ID '' Text 'World' Language 'en' Encoding 'UTF-8'
>>> message = [ndef.TextRecord("Hello"), ndef.TextRecord("World")]
>>> b''.join(ndef.message_encoder(message)) == octets
True
The ndeflib documentation can be found on Read the Docs, the code on GitHub. It is continously tested for Python 2.7 and 3.5 with pretty complete test coverage.
About
Python package for parsing and generating NFC Data Exchange Format messages.
Topics
ndefndef-librarypythonpython-library
Resources
Readme
ISC license
Contributing
Contributing
Activity
Custom properties
Stars
69 stars
Watchers
3 watching
Forks
13 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, '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); }
})();
})();

Skip to content
BranchesTags
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Parse or generate NDEF messages
Python PackageLatest DocumentationBuild StatusCode Coverage
The ndeflib is an ISC-licensed Python package for parsing and generating NFC Data Exchange Format (NDEF) messages:
>>> import ndef
>>> hexstr ='9101085402656e48656c6c6f5101085402656e576f726c64'
>>> octets =bytearray.fromhex(hexstr)
>>> for record in ndef.message_decoder(octets): print(record)
NDEF Text Record ID '' Text 'Hello' Language 'en' Encoding 'UTF-8'
NDEF Text Record ID '' Text 'World' Language 'en' Encoding 'UTF-8'
>>> message = [ndef.TextRecord("Hello"), ndef.TextRecord("World")]
>>> b''.join(ndef.message_encoder(message)) == octets
True
The ndeflib documentation can be found on Read the Docs, the code on GitHub. It is continously tested for Python 2.7 and 3.5 with pretty complete test coverage.
About
Python package for parsing and generating NFC Data Exchange Format messages.
Topics
ndefndef-librarypythonpython-library
Resources
Readme
ISC license
Contributing
Contributing
Activity
Custom properties
Stars
69 stars
Watchers
3 watching
Forks
13 forks
Report repository
Releases
Packages
Used by
Contributors
Languages