Python Summary.ipynb

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   "source": [
    "# Awesome Jupyter Notebook\n",
    "> Session 2\n",
    "\n",
    "> Python Workshop for Benjama EEP\n",
    "\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Objectives\n",
    "1. bool - True, False\n",
    "1. [If-else](04 If Statements.ipynb)\n",
    "2. [While](05 While Loops and User Input.ipynb)\n",
    "3. For\n",
    "4. [Function](07 Introduction to Functions.ipynb)\n",
    "5. [Object Oriented Programming](Object Oriented Programming.ipynb)\n",
    "6. [Awesome Data Science Notebooks](https://github.com/jakevdp/PythonDataScienceHandbook)"
   ]
  },
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   "metadata": {},
   "source": [
    "## List - ลำดับ\n",
    "```python\n",
    "speakers = [ 'K', 'Kai', 'Or', 'Paul', 'Tom', 'Woot' ]\n",
    "heights = [ 180, 164, 165, 165, 180, 170 ]\n",
    "pop = [ 3.25, 3.9, 4, 3, 3.5, 3.44 ] \n",
    "```\n",
    "\n",
    "### เข้าถึงข้อมูลในลำดับ\n",
    "```python\n",
    "print(speakers[0])\n",
    "print(speakers[1])\n",
    "print(speakers[2])\n",
    "```\n",
    "\n",
    "### การกำหนดค่าลำดับ\n",
    "```python\n",
    "speakers[0] = 'Kriengsak'\n",
    "print(str(speakers))\n",
    "speakers[0] = 'K'\n",
    "print(str(speakers))\n",
    "```\n",
    "\n",
    "### การหาค่าต่ำสุด-สูงสุด-ผลรวม ของลำดับ\n",
    "```python\n",
    "print( max(heights) )\n",
    "print( min(pop) )\n",
    "print( sum(heights) )\n",
    "```"
   ]
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   "source": [
    "## bool - ค่าจริง-เท็จ\n",
    "```python\n",
    "speakers = [ 'K', 'Kai', 'Or', 'Paul', 'Tom', 'Woot' ]\n",
    "heights = [ 180, 164, 165, 165, 180, 170 ]\n",
    "popularity = [ 3.25, 3.9, 4, 3, 3.5, 3.44 ] \n",
    "\n",
    "print( 'K' in speakers )\n",
    "print( 'Justin Bieber' in speakers )\n",
    "print( speakers[0] == 'K' )\n",
    "print( speakers[3] == 'Wichit' )\n",
    "```"
   ]
  },
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   "metadata": {},
   "source": [
    "## If-else\n",
    "\n",
    "### เงื่อนไขเดียว\n",
    "```python\n",
    "if ค่าจริงเท็จ: \n",
    "    คำสั่งที่จะทำเมื่อเป็นจริง\n",
    "else:\n",
    "    คำสั่งที่จะทำเมื่อเป็นเท็จ\n",
    "```\n",
    "\n",
    "> ต้วอย่าง\n",
    "\n",
    "```python\n",
    "if 'Justin Bieber' in speakers:\n",
    "    print('นักร้องดังนานาชาติมา')\n",
    "else:\n",
    "    print('ไม่มีนักร้องดังมางาน')\n",
    "```\n",
    "\n",
    "### หลายเงื่อนไข\n",
    "```python\n",
    "if เงื่อนไข1:\n",
    "    คำสั่งที่จะทำเมื่อเงื่อนไข1เป็นจริง\n",
    "elif เงื่อนไข2:\n",
    "    คำสั่งที่จะทำเมื่อเงื่อนไข2เป็นจริง\n",
    "elif เงื่อนไข3:\n",
    "    คำสั่งที่จะทำเมื่อเงื่อนไข3เป็นจริง\n",
    "else: \n",
    "    คำสั่งที่จะทำเมื่อเงื่อนไขทั้งหมดเป็นเท็จ\n",
    "```"
   ]
  },
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   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## While\n",
    "```python\n",
    "while เงื่อนไข:\n",
    "    คำสั่งที่จะทำเมื่อตรวจสอบเงื่อนไขในแต่ละรอบแล้วเป็นจริง\n",
    "```\n",
    "\n",
    "> ตัวอย่าง\n",
    "\n",
    "```python\n",
    "i = 0\n",
    "while i < 10:\n",
    "    print('i = '+str(i))\n",
    "    i = i+1\n",
    "```"
   ]
  },
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   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## For\n",
    "```python\n",
    "for สมาชิก in ลำดับ:\n",
    "    คำสั่งที่จะทำสำหรับสมาชิกแต่ละตัว\n",
    "```\n",
    "\n",
    "> ตัวอย่าง\n",
    "\n",
    "```python\n",
    "speakers = [ 'K', 'Kai', 'Or', 'Paul', 'Tom', 'Woot' ]\n",
    "for speaker in speakers:\n",
    "    print(speaker)\n",
    "```"
   ]
  },
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   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Function - การเขียนฟังก์ชัน\n",
    "```python\n",
    "def ชื่อฟังก์ชัน(รายการข้อมูลที่รับมา):\n",
    "    คำสั่งภายในฟังก์ชัน\n",
    "```\n",
    "\n",
    "> ตัวอย่าง\n",
    "\n",
    "```python\n",
    "def statsummary(a):\n",
    "    import statistics\n",
    "    print('ลำดับ: '+str(a))\n",
    "    print('ค่าเฉลี่ยของลำดับ: '+str(statistics.mean(a)))\n",
    "    print('ค่าเบี่ยงเบนมาตรฐานของลำดับ: '+str(statistics.stdev(a)))\n",
    "\n",
    "heights = [ 180, 164, 165, 165, 180, 170 ]\n",
    "statssummary(heights)\n",
    "```"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Dictionary/json - ชนิดข้อมูลที่นิยมใช้แลกเปลี่ยนข้อมูล\n",
    "* อัตราแลกเปลี่ยน https://api.fixer.io/lastest\n",
    "* ข้อมูลผู้ใช้บน github  https://api.github.com/users \n",
    "* Google: YouTube Data API, Live Stream, Analytics https://developers.google.com/youtube/v3/\n",
    "* Facebook: [Graph API](https://developers.facebook.com/docs/graph-api/)\n",
    "* [The Movie Database](https://www.themoviedb.org/)\n",
    "\n",
    "### ข้อมูลจากเครื่องวิทยากร\n",
    "#### แบบ json\n",
    "* http://หมายเลขไอพีเครื่องวิทยากร/api/info\n",
    "* http://หมายเลขไอพีเครื่องวิทยากร/api/exchange\n",
    "\n",
    "#### แบบข้อความธรรมดา\n",
    "* http://หมายเลขไอพีเครื่องวิทยากร/speakers/txt\n",
    "* http://หมายเลขไอพีเครื่องวิทยากร/height/txt\n",
    "* http://หมายเลขไอพีเครื่องวิทยากร/pop/txt\n",
    "\n",
    "### รูปแบบข้อมูล dictionary\n",
    "```python\n",
    "speakers = {\n",
    "  'K': 'เกรียงศักดิ์',\n",
    "  'Woot': 'วราวุฒิ',\n",
    "  'Tom': 'ไพชยนต์'\n",
    "}\n",
    "```\n",
    "\n",
    "เนื่องจาก str ใน python ใช้ได้ทั้ง '' และ \"\" \n",
    "```python\n",
    "speakers = {\n",
    "  \"K\": \"เกรียงศักดิ์\",\n",
    "  \"Woot\": \"วราวุฒิ\",\n",
    "  \"Tom\": \"ไพชยนต์\"\n",
    "}\n",
    "```\n",
    "\n",
    "> ตัวอย่าง  info\n",
    "\n",
    "```python\n",
    "{\n",
    "    \"K\": {\n",
    "        \"ชื่อ-สกุล\": \"เกรียงศักดิ์ ตรีประพิณ\",\n",
    "        \"e-mail\": \"kriengsak.t@ubu.ac.th\",\n",
    "        \"picture\":  \"image/K.jpg\"\n",
    "    },\n",
    "    \"Kai\": {\n",
    "        \"ชื่อ-สกุล\": \"ปิยนันท์ พนากานต์\", \n",
    "        \"e-mail\": \"piyanan.p@ubu.ac.th\",\n",
    "        \"picture\":  \"image/Kai.jpg\"\n",
    "    },\n",
    "    \"Or\": {\n",
    "        \"ชื่อ-สกุล\": \"วาสนา เหง้าเกษ\",\n",
    "        \"e-mail\": \"wasana.n@ubu.ac.th\",\n",
    "        \"picture\":  \"image/Or.jpg\"\n",
    "    },\n",
    "    \"Paul\": {\n",
    "        \"ชื่อ-สกุล\": \"วิชิต สมบัติ\",\n",
    "        \"e-mail\": \"wichit.s@ubu.ac.th\",\n",
    "        \"picture\":  \"image/Paul.jpg\"\n",
    "    },\n",
    "    \"Tom\": {\n",
    "        \"ชื่อ-สกุล\": \"ไพชยนต์ คงไชย\",\n",
    "        \"e-mail\": \"phaichayon.k@ubu.ac.th\",\n",
    "        \"picture\":  \"image/Tom.jpg\"\n",
    "    },\n",
    "    \"Woot\": {\n",
    "        \"ชื่อ-สกุล\": \"วราวุฒิ ผ้าเจริญ\",\n",
    "        \"e-mail\": \"warawoot.p@ubu.ac.th\",\n",
    "        \"picture\":  \"image/Woot.jpg\"\n",
    "    }\n",
    "}\n",
    "```"
   ]
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   "metadata": {},
   "source": [
    "## การรับส่งข้อมูล json\n",
    "```python\n",
    "import requests\n",
    "r = requests.get('http://api.fixer.io/latest')\n",
    "x = r.json()\n",
    "print( type(x) )\n",
    "print(x)\n",
    "```"
   ]
  },
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   "metadata": {},
   "source": [
    "## More on import \n",
    "คำสั่งเพื่อสร้างหน้าต่างขึ้นมา\n",
    "\n",
    "```python\n",
    "import sys\n",
    "import PyQt5.QtWidgets \n",
    "\n",
    "app = PyQt5.QtWidgets.QApplication(sys.argv)\n",
    "w = PyQt5.QtWidgets.QWidget()\n",
    "w.resize(250, 150)\n",
    "w.move(300, 300)\n",
    "w.show()\n",
    "\n",
    "sys.exit(app.exec_())\n",
    "```\n",
    "\n",
    "เราสามารถทำการย่อชื่อโดยใช้คำสั่ง import ช่วยให้สั้นลงได้ดังนี้\n",
    "```python\n",
    "import sys\n",
    "from PyQt5.QtWidgets import QApplication, QWidget\n",
    "\n",
    "app = QApplication(sys.argv)\n",
    "w = QWidget()\n",
    "w.resize(250, 150)\n",
    "w.move(300, 300)\n",
    "w.show()\n",
    "\n",
    "sys.exit(app.exec_())\n",
    "```\n"
   ]
  },
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   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# แนวคิดเชิงวัตถุ และการสืบทอดคุณสมบัติ\n",
    "เราสามารถเขียนนิยามหน้าต่างของเราเองได้ดังนี้\n",
    "```python\n",
    "import sys\n",
    "from PyQt5.QtWidgets import QApplication, QWidget\n",
    "from PyQt5.QtGui import QIcon\n",
    "\n",
    "\n",
    "class MyWindow(QWidget):\n",
    "    \n",
    "    def __init__(self):\n",
    "        super().__init__()\n",
    "        self.setGeometry(300, 300, 250, 150)\n",
    "        self.setWindowTitle('Icon')\n",
    "        self.setWindowIcon(QIcon('icon.png'))\n",
    "        self.show()\n",
    "        \n",
    "        \n",
    "if __name__ == '__main__':\n",
    "    \n",
    "    app = QApplication(sys.argv)\n",
    "    ex = Example()\n",
    "    sys.exit(app.exec_())\n",
    "```"
   ]
  },
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   "execution_count": null,
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