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#Programming Bitcoin

###BY JIMMY SONG

#####O'Reilly Media, Inc.March 2019

LICENSE

Repository for the book to be published by O'Reilly.

This book will be licensed under CC-BY-NC-ND once the book is published.

##Setting Up

To get the most out of this book, you’ll want to create an environment where you can run the example code and do the exercises. Here are the steps required to set everything up:

###1. Install Python 3.5 or higher on your machine:

Windows: https://www.python.org/ftp/python/3.6.2/python-3.6.2-amd64.exe

macOS: https://www.python.org/ftp/python/3.6.2/python-3.6.2-macosx10.6.pkg

Linux #####See your distro docs (many Linux distributions, like Ubuntu, come with Python 3.5+ preinstalled)

###2. Install pip by downloading this script: https://bootstrap.pypa.io/get-pip.py.

###3. Run this script using Python 3:

$ python3 get-pip.py

###4. Install Git. The commands for downloading and installing it are at https://git-scm.com/downloads.

###5. Download the source code for this book:

$ git clone https://github.com/jimmysong/programmingbitcoin$ cd programmingbitcoin

###6. Install virtualenv:

$ pip install virtualenv

###7. Install the requirements:

Linux/macOS

$ virtualenv -p python3 .venv$ . .venv/bin/activate(.venv) $ pip install -r requirements.txt

Windows

C:\programmingbitcoin> virtualenv -pC:\PathToYourPythonInstallation\Python.exe .venvC:\programmingbitcoin> .venv\Scripts\activate.batC:\programmingbitcoin> pip install -r requirements.txt ###8. Run Jupyter Notebook:

(.venv) $ jupyter notebook[I 11:13:23.061 NotebookApp] Serving notebooks from local directory: /home/jimmy/programmingbitcoin[I 11:13:23.061 NotebookApp] The Jupyter Notebook is running at: [I 11:13:23.061 NotebookApp] http://localhost:8888/?token= f849627e4d9d07d2158e3fcde93590eff4a9a7a01f65a8e7[I 11:13:23.061 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).[C 11:13:23.065 NotebookApp]Copy/paste this URL into your browser when you connect forthe first time, to login with a token:http://localhost:8888/?token=f849627e4d9d07d2158e3fcde93590eff4a9a7a01f65a8e7

You should have a browser open up automatically, as shown in Figure P-1.

MORE INFO AT: https://learning.oreilly.com/library/view/programming-bitcoin/9781492031482/preface01.html#setting_up

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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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#Programming Bitcoin

###BY JIMMY SONG

#####O'Reilly Media, Inc.March 2019

LICENSE

Repository for the book to be published by O'Reilly.

This book will be licensed under CC-BY-NC-ND once the book is published.

##Setting Up

To get the most out of this book, you’ll want to create an environment where you can run the example code and do the exercises. Here are the steps required to set everything up:

###1. Install Python 3.5 or higher on your machine:

Windows: https://www.python.org/ftp/python/3.6.2/python-3.6.2-amd64.exe

macOS: https://www.python.org/ftp/python/3.6.2/python-3.6.2-macosx10.6.pkg

Linux #####See your distro docs (many Linux distributions, like Ubuntu, come with Python 3.5+ preinstalled)

###2. Install pip by downloading this script: https://bootstrap.pypa.io/get-pip.py.

###3. Run this script using Python 3:

$ python3 get-pip.py

###4. Install Git. The commands for downloading and installing it are at https://git-scm.com/downloads.

###5. Download the source code for this book:

$ git clone https://github.com/jimmysong/programmingbitcoin$ cd programmingbitcoin

###6. Install virtualenv:

$ pip install virtualenv

###7. Install the requirements:

Linux/macOS

$ virtualenv -p python3 .venv$ . .venv/bin/activate(.venv) $ pip install -r requirements.txt

Windows

C:\programmingbitcoin> virtualenv -pC:\PathToYourPythonInstallation\Python.exe .venvC:\programmingbitcoin> .venv\Scripts\activate.batC:\programmingbitcoin> pip install -r requirements.txt ###8. Run Jupyter Notebook:

(.venv) $ jupyter notebook[I 11:13:23.061 NotebookApp] Serving notebooks from local directory: /home/jimmy/programmingbitcoin[I 11:13:23.061 NotebookApp] The Jupyter Notebook is running at: [I 11:13:23.061 NotebookApp] http://localhost:8888/?token= f849627e4d9d07d2158e3fcde93590eff4a9a7a01f65a8e7[I 11:13:23.061 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).[C 11:13:23.065 NotebookApp]Copy/paste this URL into your browser when you connect forthe first time, to login with a token:http://localhost:8888/?token=f849627e4d9d07d2158e3fcde93590eff4a9a7a01f65a8e7

You should have a browser open up automatically, as shown in Figure P-1.

MORE INFO AT: https://learning.oreilly.com/library/view/programming-bitcoin/9781492031482/preface01.html#setting_up

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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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#Programming Bitcoin

###BY JIMMY SONG

#####O'Reilly Media, Inc.March 2019

LICENSE

Repository for the book to be published by O'Reilly.

This book will be licensed under CC-BY-NC-ND once the book is published.

##Setting Up

To get the most out of this book, you’ll want to create an environment where you can run the example code and do the exercises. Here are the steps required to set everything up:

###1. Install Python 3.5 or higher on your machine:

Windows: https://www.python.org/ftp/python/3.6.2/python-3.6.2-amd64.exe

macOS: https://www.python.org/ftp/python/3.6.2/python-3.6.2-macosx10.6.pkg

Linux #####See your distro docs (many Linux distributions, like Ubuntu, come with Python 3.5+ preinstalled)

###2. Install pip by downloading this script: https://bootstrap.pypa.io/get-pip.py.

###3. Run this script using Python 3:

$ python3 get-pip.py

###4. Install Git. The commands for downloading and installing it are at https://git-scm.com/downloads.

###5. Download the source code for this book:

$ git clone https://github.com/jimmysong/programmingbitcoin$ cd programmingbitcoin

###6. Install virtualenv:

$ pip install virtualenv

###7. Install the requirements:

Linux/macOS

$ virtualenv -p python3 .venv$ . .venv/bin/activate(.venv) $ pip install -r requirements.txt

Windows

C:\programmingbitcoin> virtualenv -pC:\PathToYourPythonInstallation\Python.exe .venvC:\programmingbitcoin> .venv\Scripts\activate.batC:\programmingbitcoin> pip install -r requirements.txt ###8. Run Jupyter Notebook:

(.venv) $ jupyter notebook[I 11:13:23.061 NotebookApp] Serving notebooks from local directory: /home/jimmy/programmingbitcoin[I 11:13:23.061 NotebookApp] The Jupyter Notebook is running at: [I 11:13:23.061 NotebookApp] http://localhost:8888/?token= f849627e4d9d07d2158e3fcde93590eff4a9a7a01f65a8e7[I 11:13:23.061 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).[C 11:13:23.065 NotebookApp]Copy/paste this URL into your browser when you connect forthe first time, to login with a token:http://localhost:8888/?token=f849627e4d9d07d2158e3fcde93590eff4a9a7a01f65a8e7

You should have a browser open up automatically, as shown in Figure P-1.

MORE INFO AT: https://learning.oreilly.com/library/view/programming-bitcoin/9781492031482/preface01.html#setting_up

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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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#Programming Bitcoin

###BY JIMMY SONG

#####O'Reilly Media, Inc.March 2019

LICENSE

Repository for the book to be published by O'Reilly.

This book will be licensed under CC-BY-NC-ND once the book is published.

##Setting Up

To get the most out of this book, you’ll want to create an environment where you can run the example code and do the exercises. Here are the steps required to set everything up:

###1. Install Python 3.5 or higher on your machine:

Windows: https://www.python.org/ftp/python/3.6.2/python-3.6.2-amd64.exe

macOS: https://www.python.org/ftp/python/3.6.2/python-3.6.2-macosx10.6.pkg

Linux #####See your distro docs (many Linux distributions, like Ubuntu, come with Python 3.5+ preinstalled)

###2. Install pip by downloading this script: https://bootstrap.pypa.io/get-pip.py.

###3. Run this script using Python 3:

$ python3 get-pip.py

###4. Install Git. The commands for downloading and installing it are at https://git-scm.com/downloads.

###5. Download the source code for this book:

$ git clone https://github.com/jimmysong/programmingbitcoin$ cd programmingbitcoin

###6. Install virtualenv:

$ pip install virtualenv

###7. Install the requirements:

Linux/macOS

$ virtualenv -p python3 .venv$ . .venv/bin/activate(.venv) $ pip install -r requirements.txt

Windows

C:\programmingbitcoin> virtualenv -pC:\PathToYourPythonInstallation\Python.exe .venvC:\programmingbitcoin> .venv\Scripts\activate.batC:\programmingbitcoin> pip install -r requirements.txt ###8. Run Jupyter Notebook:

(.venv) $ jupyter notebook[I 11:13:23.061 NotebookApp] Serving notebooks from local directory: /home/jimmy/programmingbitcoin[I 11:13:23.061 NotebookApp] The Jupyter Notebook is running at: [I 11:13:23.061 NotebookApp] http://localhost:8888/?token= f849627e4d9d07d2158e3fcde93590eff4a9a7a01f65a8e7[I 11:13:23.061 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).[C 11:13:23.065 NotebookApp]Copy/paste this URL into your browser when you connect forthe first time, to login with a token:http://localhost:8888/?token=f849627e4d9d07d2158e3fcde93590eff4a9a7a01f65a8e7

You should have a browser open up automatically, as shown in Figure P-1.

MORE INFO AT: https://learning.oreilly.com/library/view/programming-bitcoin/9781492031482/preface01.html#setting_up

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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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#Programming Bitcoin

###BY JIMMY SONG

#####O'Reilly Media, Inc.March 2019

LICENSE

Repository for the book to be published by O'Reilly.

This book will be licensed under CC-BY-NC-ND once the book is published.

##Setting Up

To get the most out of this book, you’ll want to create an environment where you can run the example code and do the exercises. Here are the steps required to set everything up:

###1. Install Python 3.5 or higher on your machine:

Windows: https://www.python.org/ftp/python/3.6.2/python-3.6.2-amd64.exe

macOS: https://www.python.org/ftp/python/3.6.2/python-3.6.2-macosx10.6.pkg

Linux #####See your distro docs (many Linux distributions, like Ubuntu, come with Python 3.5+ preinstalled)

###2. Install pip by downloading this script: https://bootstrap.pypa.io/get-pip.py.

###3. Run this script using Python 3:

$ python3 get-pip.py

###4. Install Git. The commands for downloading and installing it are at https://git-scm.com/downloads.

###5. Download the source code for this book:

$ git clone https://github.com/jimmysong/programmingbitcoin$ cd programmingbitcoin

###6. Install virtualenv:

$ pip install virtualenv

###7. Install the requirements:

Linux/macOS

$ virtualenv -p python3 .venv$ . .venv/bin/activate(.venv) $ pip install -r requirements.txt

Windows

C:\programmingbitcoin> virtualenv -pC:\PathToYourPythonInstallation\Python.exe .venvC:\programmingbitcoin> .venv\Scripts\activate.batC:\programmingbitcoin> pip install -r requirements.txt ###8. Run Jupyter Notebook:

(.venv) $ jupyter notebook[I 11:13:23.061 NotebookApp] Serving notebooks from local directory: /home/jimmy/programmingbitcoin[I 11:13:23.061 NotebookApp] The Jupyter Notebook is running at: [I 11:13:23.061 NotebookApp] http://localhost:8888/?token= f849627e4d9d07d2158e3fcde93590eff4a9a7a01f65a8e7[I 11:13:23.061 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).[C 11:13:23.065 NotebookApp]Copy/paste this URL into your browser when you connect forthe first time, to login with a token:http://localhost:8888/?token=f849627e4d9d07d2158e3fcde93590eff4a9a7a01f65a8e7

You should have a browser open up automatically, as shown in Figure P-1.

MORE INFO AT: https://learning.oreilly.com/library/view/programming-bitcoin/9781492031482/preface01.html#setting_up

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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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#Programming Bitcoin

###BY JIMMY SONG

#####O'Reilly Media, Inc.March 2019

LICENSE

Repository for the book to be published by O'Reilly.

This book will be licensed under CC-BY-NC-ND once the book is published.

##Setting Up

To get the most out of this book, you’ll want to create an environment where you can run the example code and do the exercises. Here are the steps required to set everything up:

###1. Install Python 3.5 or higher on your machine:

Windows: https://www.python.org/ftp/python/3.6.2/python-3.6.2-amd64.exe

macOS: https://www.python.org/ftp/python/3.6.2/python-3.6.2-macosx10.6.pkg

Linux #####See your distro docs (many Linux distributions, like Ubuntu, come with Python 3.5+ preinstalled)

###2. Install pip by downloading this script: https://bootstrap.pypa.io/get-pip.py.

###3. Run this script using Python 3:

$ python3 get-pip.py

###4. Install Git. The commands for downloading and installing it are at https://git-scm.com/downloads.

###5. Download the source code for this book:

$ git clone https://github.com/jimmysong/programmingbitcoin$ cd programmingbitcoin

###6. Install virtualenv:

$ pip install virtualenv

###7. Install the requirements:

Linux/macOS

$ virtualenv -p python3 .venv$ . .venv/bin/activate(.venv) $ pip install -r requirements.txt

Windows

C:\programmingbitcoin> virtualenv -pC:\PathToYourPythonInstallation\Python.exe .venvC:\programmingbitcoin> .venv\Scripts\activate.batC:\programmingbitcoin> pip install -r requirements.txt ###8. Run Jupyter Notebook:

(.venv) $ jupyter notebook[I 11:13:23.061 NotebookApp] Serving notebooks from local directory: /home/jimmy/programmingbitcoin[I 11:13:23.061 NotebookApp] The Jupyter Notebook is running at: [I 11:13:23.061 NotebookApp] http://localhost:8888/?token= f849627e4d9d07d2158e3fcde93590eff4a9a7a01f65a8e7[I 11:13:23.061 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).[C 11:13:23.065 NotebookApp]Copy/paste this URL into your browser when you connect forthe first time, to login with a token:http://localhost:8888/?token=f849627e4d9d07d2158e3fcde93590eff4a9a7a01f65a8e7

You should have a browser open up automatically, as shown in Figure P-1.

MORE INFO AT: https://learning.oreilly.com/library/view/programming-bitcoin/9781492031482/preface01.html#setting_up

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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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#Programming Bitcoin

###BY JIMMY SONG

#####O'Reilly Media, Inc.March 2019

LICENSE

Repository for the book to be published by O'Reilly.

This book will be licensed under CC-BY-NC-ND once the book is published.

##Setting Up

To get the most out of this book, you’ll want to create an environment where you can run the example code and do the exercises. Here are the steps required to set everything up:

###1. Install Python 3.5 or higher on your machine:

Windows: https://www.python.org/ftp/python/3.6.2/python-3.6.2-amd64.exe

macOS: https://www.python.org/ftp/python/3.6.2/python-3.6.2-macosx10.6.pkg

Linux #####See your distro docs (many Linux distributions, like Ubuntu, come with Python 3.5+ preinstalled)

###2. Install pip by downloading this script: https://bootstrap.pypa.io/get-pip.py.

###3. Run this script using Python 3:

$ python3 get-pip.py

###4. Install Git. The commands for downloading and installing it are at https://git-scm.com/downloads.

###5. Download the source code for this book:

$ git clone https://github.com/jimmysong/programmingbitcoin$ cd programmingbitcoin

###6. Install virtualenv:

$ pip install virtualenv

###7. Install the requirements:

Linux/macOS

$ virtualenv -p python3 .venv$ . .venv/bin/activate(.venv) $ pip install -r requirements.txt

Windows

C:\programmingbitcoin> virtualenv -pC:\PathToYourPythonInstallation\Python.exe .venvC:\programmingbitcoin> .venv\Scripts\activate.batC:\programmingbitcoin> pip install -r requirements.txt ###8. Run Jupyter Notebook:

(.venv) $ jupyter notebook[I 11:13:23.061 NotebookApp] Serving notebooks from local directory: /home/jimmy/programmingbitcoin[I 11:13:23.061 NotebookApp] The Jupyter Notebook is running at: [I 11:13:23.061 NotebookApp] http://localhost:8888/?token= f849627e4d9d07d2158e3fcde93590eff4a9a7a01f65a8e7[I 11:13:23.061 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).[C 11:13:23.065 NotebookApp]Copy/paste this URL into your browser when you connect forthe first time, to login with a token:http://localhost:8888/?token=f849627e4d9d07d2158e3fcde93590eff4a9a7a01f65a8e7

You should have a browser open up automatically, as shown in Figure P-1.

MORE INFO AT: https://learning.oreilly.com/library/view/programming-bitcoin/9781492031482/preface01.html#setting_up

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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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#Programming Bitcoin

###BY JIMMY SONG

#####O'Reilly Media, Inc.March 2019

LICENSE

Repository for the book to be published by O'Reilly.

This book will be licensed under CC-BY-NC-ND once the book is published.

##Setting Up

To get the most out of this book, you’ll want to create an environment where you can run the example code and do the exercises. Here are the steps required to set everything up:

###1. Install Python 3.5 or higher on your machine:

Windows: https://www.python.org/ftp/python/3.6.2/python-3.6.2-amd64.exe

macOS: https://www.python.org/ftp/python/3.6.2/python-3.6.2-macosx10.6.pkg

Linux #####See your distro docs (many Linux distributions, like Ubuntu, come with Python 3.5+ preinstalled)

###2. Install pip by downloading this script: https://bootstrap.pypa.io/get-pip.py.

###3. Run this script using Python 3:

$ python3 get-pip.py

###4. Install Git. The commands for downloading and installing it are at https://git-scm.com/downloads.

###5. Download the source code for this book:

$ git clone https://github.com/jimmysong/programmingbitcoin$ cd programmingbitcoin

###6. Install virtualenv:

$ pip install virtualenv

###7. Install the requirements:

Linux/macOS

$ virtualenv -p python3 .venv$ . .venv/bin/activate(.venv) $ pip install -r requirements.txt

Windows

C:\programmingbitcoin> virtualenv -pC:\PathToYourPythonInstallation\Python.exe .venvC:\programmingbitcoin> .venv\Scripts\activate.batC:\programmingbitcoin> pip install -r requirements.txt ###8. Run Jupyter Notebook:

(.venv) $ jupyter notebook[I 11:13:23.061 NotebookApp] Serving notebooks from local directory: /home/jimmy/programmingbitcoin[I 11:13:23.061 NotebookApp] The Jupyter Notebook is running at: [I 11:13:23.061 NotebookApp] http://localhost:8888/?token= f849627e4d9d07d2158e3fcde93590eff4a9a7a01f65a8e7[I 11:13:23.061 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).[C 11:13:23.065 NotebookApp]Copy/paste this URL into your browser when you connect forthe first time, to login with a token:http://localhost:8888/?token=f849627e4d9d07d2158e3fcde93590eff4a9a7a01f65a8e7

You should have a browser open up automatically, as shown in Figure P-1.

MORE INFO AT: https://learning.oreilly.com/library/view/programming-bitcoin/9781492031482/preface01.html#setting_up

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