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‎002_Python_String_Methods/005_Python_String_endswith().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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"source": [
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"<small><small><i>\n",
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"All the IPython Notebooks in this lecture series by Dr. Milan Parmar are available @ **[GitHub](https://github.com/milaan9/02_Python_Datatypes/tree/main/002_Python_String_Methods)**\n",
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"</i></small></small>"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Python String `endswith()`\n",
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"\n",
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"The **`endswith()`** method returns True if a string ends with the specified suffix. If not, it returns False.\n",
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"\n",
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"**Syntax**:\n",
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"\n",
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"```python\n",
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"str.endswith(suffix[, start[, end]])\n",
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"```"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## `endswith()` Parameters\n",
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"\n",
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"The **`endswith()`** method takes three parameters:\n",
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"\n",
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"* **suffix** - String or tuple of suffixes to be checked.\n",
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"* **start (Optional)** - Beginning position where **suffix** is to be checked within the string.\n",
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"* **end (Optional)** - Ending position where **suffix** is to be checked within the string."
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## Return Value from `endswith()`\n",
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"\n",
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"The **`endswith()`** method returns a boolean.\n",
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"\n",
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"* It returns **True** if strings ends with the specified suffix.\n",
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"* It returns **False** if string doesn't end with the specified suffix."
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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": 1,
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"ExecuteTime": {
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"end_time": "2021-06-10T18:04:31.419064Z",
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"start_time": "2021-06-10T18:04:31.402512Z"
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{
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"name": "stdout",
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"False\n",
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"True\n",
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"True\n"
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]
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}
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],
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"source": [
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"# Example 1: endswith() Without start and end Parameters\n",
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"\n",
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"text = \"Python is easy to learn.\"\n",
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"\n",
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"result = text.endswith('to learn')\n",
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"# returns False\n",
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"print(result)\n",
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"\n",
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"result = text.endswith('to learn.')\n",
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"# returns True\n",
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"print(result)\n",
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"\n",
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"result = text.endswith('Python is easy to learn.')\n",
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"# returns True\n",
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"print(result)"
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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": 2,
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"metadata": {
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"ExecuteTime": {
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"end_time": "2021-06-10T18:04:32.012611Z",
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"start_time": "2021-06-10T18:04:31.999952Z"
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},
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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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"True\n",
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"False\n",
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"True\n"
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]
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}
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],
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"source": [
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"# Example 2: endswith() With start and end Parameters\n",
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"\n",
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"text = \"Python programming is easy to learn.\"\n",
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"\n",
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"# start parameter: 7\n",
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"# \"programming is easy to learn.\" string is searched\n",
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"result = text.endswith('learn.', 7)\n",
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"print(result)\n",
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"\n",
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"# Both start and end is provided\n",
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"# start: 7, end: 26\n",
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"# \"programming is easy\" string is searched\n",
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"\n",
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"result = text.endswith('is', 7, 26)\n",
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"# Returns False\n",
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"print(result)\n",
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"\n",
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"result = text.endswith('easy', 7, 26)\n",
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"# returns True\n",
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"print(result)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## Passing Tuple to `endswith()`\n",
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"\n",
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"It's possible to pass a tuple suffixes to the **`endswith()`** method in Python.\n",
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"\n",
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"If the string ends with any item of the tuple, **`endswith()`** returns **`True`**. If not, it returns **`False`**."
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]
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},
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{
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"cell_type": "code",
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},
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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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"False\n",
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"True\n",
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"True\n"
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]
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}
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],
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"source": [
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"# Example 3: endswith() With Tuple Suffix\n",
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"\n",
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"text = \"programming is easy\"\n",
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"result = text.endswith(('programming', 'python'))\n",
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"\n",
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"# prints False\n",
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"print(result)\n",
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"\n",
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"result = text.endswith(('python', 'easy', 'java'))\n",
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"\n",
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"#prints True\n",
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"print(result)\n",
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"\n",
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"# With start and end parameter\n",
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"# 'programming is' string is checked\n",
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"result = text.endswith(('is', 'an'), 0, 14)\n",
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"\n",
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"# prints True\n",
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"print(result)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"If you need to check if a string starts with the specified prefix, you can use **[startswith() method in Python](https://github.com/milaan9/02_Python_Datatypes/blob/main/002_Python_String_Methods/041_Python_String_startswith%28%29.ipynb)**."
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]
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