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‎.ipynb_checkpoints/DS_Lists-checkpoint.ipynb

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},
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{
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"cell_type": "code",
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"execution_count": 15,
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"execution_count": 1,
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"metadata": {},
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"outputs": [
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{
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"[10, 15, 20, 25, 35, 30]"
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]
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},
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"execution_count": 15,
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"execution_count": 1,
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"metadata": {},
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"output_type": "execute_result"
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}
@@ -532,7 +532,7 @@
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],
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"source": [
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"l1 = ['Hi', 'Python', 'how', 'String', 'Data', 'Sorting Strings']\n",
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"l1.sort()\n",
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"l1.sort() #lexicographic sorting (as per unicode values)\n",
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"print(l1)\n",
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"l1.sort(key = len, reverse = True)\n",
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"print(l1)"
@@ -553,23 +553,31 @@
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},
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{
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"cell_type": "code",
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"execution_count": 17,
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"execution_count": 3,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"[10, 20, 50, 0, -10, -1, 100]\n"
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]
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},
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{
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"data": {
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"text/plain": [
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"[-10, -1, 0, 10, 20, 50, 100]"
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]
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},
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"execution_count": 17,
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"execution_count": 3,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"l2 = [10, 20, 50, 0, -10, -1, 100]\n",
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"l2 = sorted(l2)\n",
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"l1 = [10, 20, 50, 0, -10, -1, 100]\n",
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"l2 = sorted(l1)\n",
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"print(l1)\n",
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"l2"
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]
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},

‎.ipynb_checkpoints/Errors_and_Exception_Handling-checkpoint.ipynb

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{
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"cells": [
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{
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"cell_type": "markdown",
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"id": "199a314e-264d-40a7-9acc-cf6e1843dba7",
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"metadata": {},
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"source": [
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"# Errors and Exception"
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]
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},
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{
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"cell_type": "markdown",
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"id": "e6044ca7-f38b-492b-b869-23f5409ac9e1",
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"metadata": {},
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"source": [
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"## Error:\n",
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"\n",
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"Errors are the problems in a program due to which the program will stop the execution.\n",
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"\n",
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"[Some Common Errors](https://www.thecrazyprogrammer.com/2014/08/types-of-errors-in-programming.html)\n",
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"\n",
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"1. Syntax Errors\n",
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"2. Run-time Errors\n",
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"3. Logical Errors\n",
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"4. Latent Errors"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 10,
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"id": "35bf50f2-6901-4407-a684-415f7ba3f569",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"ArithmeticError\n",
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"AssertionError\n",
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"AttributeError\n",
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"BlockingIOError\n",
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"BrokenPipeError\n",
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"BufferError\n",
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"ChildProcessError\n",
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"ConnectionAbortedError\n",
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"ConnectionError\n",
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"ConnectionRefusedError\n",
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"ConnectionResetError\n",
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"EOFError\n",
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"EnvironmentError\n",
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"FileExistsError\n",
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"FileNotFoundError\n",
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"FloatingPointError\n",
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"IOError\n",
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"ImportError\n",
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"IndentationError\n",
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"IndexError\n",
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"InterruptedError\n",
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"IsADirectoryError\n",
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"KeyError\n",
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"LookupError\n",
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"MemoryError\n",
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"ModuleNotFoundError\n",
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"NameError\n",
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"NotADirectoryError\n",
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"NotImplementedError\n",
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"OSError\n",
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"OverflowError\n",
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"PermissionError\n",
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"ProcessLookupError\n",
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"RecursionError\n",
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"ReferenceError\n",
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"RuntimeError\n",
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"SyntaxError\n",
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"SystemError\n",
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"TabError\n",
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"TimeoutError\n",
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"TypeError\n",
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"UnboundLocalError\n",
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"UnicodeDecodeError\n",
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"UnicodeEncodeError\n",
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"UnicodeError\n",
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"UnicodeTranslateError\n",
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"ValueError\n",
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"WindowsError\n",
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"ZeroDivisionError\n",
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"ArithmeticError\n",
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"AssertionError\n",
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"AttributeError\n",
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"BlockingIOError\n",
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"BrokenPipeError\n",
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"BufferError\n",
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"ChildProcessError\n",
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"ConnectionAbortedError\n",
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"ConnectionError\n",
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"ConnectionRefusedError\n",
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"ConnectionResetError\n",
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"EOFError\n",
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"EnvironmentError\n",
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"FileExistsError\n",
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"FileNotFoundError\n",
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"FloatingPointError\n",
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"IOError\n",
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"ImportError\n",
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"IndentationError\n",
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"IndexError\n",
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"InterruptedError\n",
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"IsADirectoryError\n",
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"KeyError\n",
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"LookupError\n",
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"MemoryError\n",
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"ModuleNotFoundError\n",
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"NameError\n",
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"NotADirectoryError\n",
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"NotImplementedError\n",
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"OSError\n",
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"OverflowError\n",
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"PermissionError\n",
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"ProcessLookupError\n",
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"RecursionError\n",
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"ReferenceError\n",
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"RuntimeError\n",
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"SyntaxError\n",
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"SystemError\n",
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"TabError\n",
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"TimeoutError\n",
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"TypeError\n",
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"UnboundLocalError\n",
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"UnicodeDecodeError\n",
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"UnicodeEncodeError\n",
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"UnicodeError\n",
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"UnicodeTranslateError\n",
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"ValueError\n",
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"WindowsError\n",
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"ZeroDivisionError\n"
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]
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}
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],
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"source": [
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"# list of Errors and exceptions\n",
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"for i in dir(__builtins__) + dir(__builtin__):\n",
142+
" if \"Error\" in i:\n",
143+
" print(i)"
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]
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},
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{
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"cell_type": "markdown",
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"id": "de9d7e7b-70f5-444f-88b5-a1f77d213d76",
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"metadata": {},
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"source": [
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"## Exception:\n",
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"\n",
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"Exceptions are raised when the some internal events occur which changes the normal flow of the program."
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]
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},
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{
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"cell_type": "code",
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"execution_count": 9,
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"id": "2b604b7f-9acf-4196-9ce3-45214b38adc8",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"BaseException\n",
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"Exception\n",
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"BaseException\n",
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"Exception\n"
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]
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}
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],
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"source": [
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"# list of Errors and exceptions\n",
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"for i in dir(__builtins__) + dir(__builtin__):\n",
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" if \"Exception\" in i:\n",
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" print(i)"
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]
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},
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{
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"cell_type": "markdown",
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"id": "4e8439e0-145b-46a5-9f3f-4624aa99b605",
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"metadata": {},
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"source": [
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"## Traceback\n",
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"The script used below is present [here](Errors_and_Exception.py)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 11,
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"id": "5e69d208-e867-431e-a8b1-58669ad3a798",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"In a\n",
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"In b\n"
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]
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},
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{
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"ename": "ZeroDivisionError",
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"evalue": "division by zero",
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"output_type": "error",
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"traceback": [
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"\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
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"\u001b[1;31mZeroDivisionError\u001b[0m Traceback (most recent call last)",
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"\u001b[1;32m<ipython-input-11-cabfeb6b5ae6>\u001b[0m in \u001b[0;36m<module>\u001b[1;34m\u001b[0m\n\u001b[0;32m 8\u001b[0m \u001b[1;32mreturn\u001b[0m \u001b[1;36m42\u001b[0m\u001b[1;33m/\u001b[0m\u001b[1;36m0\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m 9\u001b[0m \u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m---> 10\u001b[1;33m \u001b[0ma\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m",
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"\u001b[1;32m<ipython-input-11-cabfeb6b5ae6>\u001b[0m in \u001b[0;36ma\u001b[1;34m()\u001b[0m\n\u001b[0;32m 1\u001b[0m \u001b[1;32mdef\u001b[0m \u001b[0ma\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m:\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m 2\u001b[0m \u001b[0mprint\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;34m\"In a\"\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m----> 3\u001b[1;33m \u001b[0mb\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m\u001b[0;32m 4\u001b[0m \u001b[0mprint\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;34m\"Back in a\"\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m 5\u001b[0m \u001b[1;33m\u001b[0m\u001b[0m\n",
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"\u001b[1;32m<ipython-input-11-cabfeb6b5ae6>\u001b[0m in \u001b[0;36mb\u001b[1;34m()\u001b[0m\n\u001b[0;32m 6\u001b[0m \u001b[1;32mdef\u001b[0m \u001b[0mb\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m:\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m 7\u001b[0m \u001b[0mprint\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;34m\"In b\"\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m----> 8\u001b[1;33m \u001b[1;32mreturn\u001b[0m \u001b[1;36m42\u001b[0m\u001b[1;33m/\u001b[0m\u001b[1;36m0\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m\u001b[0;32m 9\u001b[0m \u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m 10\u001b[0m \u001b[0ma\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n",
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"\u001b[1;31mZeroDivisionError\u001b[0m: division by zero"
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]
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}
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],
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"source": [
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"def a():\n",
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" print(\"In a\")\n",
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" b()\n",
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" print(\"Back in a\")\n",
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"\n",
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"def b():\n",
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" print(\"In b\")\n",
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" return 42/0\n",
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"\n",
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"a() "
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.9.6"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 5
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}

‎.ipynb_checkpoints/Errors_and_exception-checkpoint.py

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def a():
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print("In a")
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b()
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print("Back in a")
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def b():
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val = 52
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print("In b")
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val
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return val
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a()

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