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sunilzambresunilzambre
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Python_Day-5
Solved some coding question
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‎Python_Day5.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": "cd90bbdc-17b0-4816-a994-b6c557629f31",
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"metadata": {},
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"source": [
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"#### 1.Write a Python program to check whether a file exists."
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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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"id": "b7c17718-3ab6-4c07-9724-6dd40358baae",
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"True"
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]
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},
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"execution_count": 1,
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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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"import os.path\n",
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"open('file1.txt','w')\n",
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"os.path.isfile('file1.txt')"
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]
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},
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{
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"cell_type": "markdown",
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"id": "a0b0c783-504e-4ff6-969f-f8fcb7c4f17a",
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"metadata": {},
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"source": [
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"#### 2.Write a Python program to determine if a Python shell is executing in 32bit or 64bit mode on OS."
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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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"id": "46a67718-5d4b-4e7e-990e-fedf50d03b20",
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"64"
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]
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},
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"execution_count": 2,
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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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"import struct\n",
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"struct.calcsize('P') * 8"
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]
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},
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{
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"cell_type": "markdown",
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"id": "741413a7-dd62-4fe2-b57e-e37aa501a307",
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"metadata": {},
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"source": [
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"Why char 'P'?\n",
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"struct is a module for packing and unpacking data to and from C representations. P represents void * (a generic pointer). On 32-bit systems a pointer is 4 bytes, and on a 64-bit system a pointer requires 8 bytes.\n",
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"\n",
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"struct.calcsize('P') calculates the number of bytes required to store a single pointer --> returning 4 on a 32-bit system and 8 on a 64-bit system."
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]
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},
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{
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"cell_type": "markdown",
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"id": "3049631b-f209-4153-99ae-a3a7070b203c",
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"metadata": {},
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"source": [
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"#### 3.Write a Python program to get OS name, platform and release information."
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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": 3,
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"id": "063eb65f-87f4-4e65-ba8f-b35ba11d6909",
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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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"nt\n",
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"Windows\n",
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"11\n"
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]
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}
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],
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"source": [
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"import os, platform\n",
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"\n",
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"print(os.name)\n",
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"print(platform.system())\n",
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"print(platform.release())"
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]
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},
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{
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"cell_type": "markdown",
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"id": "43174ef8-ee86-41cd-8f2a-577174f3dab6",
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"metadata": {},
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"source": [
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"### 4. Write a Python program to locate Python site-packages."
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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": 4,
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"id": "ffd96848-0ee9-4051-a1a4-d9177a5f4b09",
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"['C:\\\\Users\\\\Sunil Zambare\\\\AppData\\\\Local\\\\Programs\\\\Python\\\\Python312',\n",
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" 'C:\\\\Users\\\\Sunil Zambare\\\\AppData\\\\Local\\\\Programs\\\\Python\\\\Python312\\\\Lib\\\\site-packages']"
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]
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},
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"execution_count": 4,
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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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"import site\n",
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"\n",
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"site.getsitepackages()"
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]
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},
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{
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"cell_type": "markdown",
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"id": "29921156-283b-4940-aead-dcb1d83cf541",
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"metadata": {},
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"source": [
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"### 5. Write a python program to call an external command in Python."
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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": 6,
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"id": "5e9c740f-14bf-44ca-bed9-915fc04a7749",
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"metadata": {},
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"outputs": [],
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"source": [
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"##from subprocess import call\n",
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"\n",
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"##call(['ls', '-l'])"
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]
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},
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{
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"cell_type": "markdown",
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"id": "d094371a-3180-428f-8b0d-ef9ecb66b3c3",
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"metadata": {},
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"source": [
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"#### 6.Write a python program to get the path and name of the file that is currently executing."
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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": 7,
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"id": "920e9845-11d2-46a1-a529-e3d7ac28b826",
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"'D:\\\\Jupyter_Notebook\\\\file1.txt'"
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]
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},
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"execution_count": 7,
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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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"import os\n",
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"\n",
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"os.path.realpath('file1.txt')"
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]
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},
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{
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"cell_type": "markdown",
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"id": "689ff7c0-a1ee-429e-877b-6f91d24159ee",
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"metadata": {},
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"source": [
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"#### 7. Write a Python program to find out the number of CPUs using."
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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": 8,
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"id": "9fec5944-e6e4-49ba-8ec5-7fd769a58a34",
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"8"
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]
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},
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"execution_count": 8,
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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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"import multiprocessing\n",
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"\n",
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"multiprocessing.cpu_count()"
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]
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},
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{
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"cell_type": "markdown",
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"id": "b386e284-ae8c-4e4d-a5b7-ad5be45b705c",
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"metadata": {},
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"source": [
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"#### 8. Write a Python program to parse a string to Float or Integer."
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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": "94657ded-1ac3-4d04-9ec1-b9af349b615f",
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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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"<class 'float'>\n",
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"<class 'int'>\n"
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]
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}
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],
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"source": [
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"s = '3.14'\n",
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"\n",
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"str_to_float = float(s)\n",
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"# str_to_int = int(s) # We need to convert the string into float first. Otherwise it will raise 'ValueError'\n",
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"str_to_int = int(float(s))\n",
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"\n",
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"print(type(str_to_float))\n",
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"print(type(str_to_int))"
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]
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},
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{
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"cell_type": "markdown",
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"id": "5b245949-c085-4901-8134-2e335f5726ce",
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"metadata": {},
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"source": [
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"#### 9. Write a Python program to list all files in a directory in Python."
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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": "7aecdc4b-c57d-4ca4-8787-bd0211cd8841",
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"metadata": {},
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"outputs": [
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{
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"name": "stderr",
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"output_type": "stream",
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"text": [
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"<>:4: SyntaxWarning: invalid escape sequence '\\J'\n",
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"<>:4: SyntaxWarning: invalid escape sequence '\\J'\n",
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"C:\\Users\\Sunil Zambare\\AppData\\Local\\Temp\\ipykernel_6436\\77662623.py:4: SyntaxWarning: invalid escape sequence '\\J'\n",
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" files_list = [f for f in listdir('D:\\Jupyter_Notebook\\') if isfile(join('D:\\Jupyter_Notebook\\', f))]\n"
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]
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},
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{
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"ename": "SyntaxError",
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"evalue": "invalid syntax. Perhaps you forgot a comma? (77662623.py, line 4)",
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"output_type": "error",
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"traceback": [
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"\u001b[1;36m Cell \u001b[1;32mIn[10], line 4\u001b[1;36m\u001b[0m\n\u001b[1;33m files_list = [f for f in listdir('D:\\Jupyter_Notebook\\') if isfile(join('D:\\Jupyter_Notebook\\', f))]\u001b[0m\n\u001b[1;37m ^\u001b[0m\n\u001b[1;31mSyntaxError\u001b[0m\u001b[1;31m:\u001b[0m invalid syntax. Perhaps you forgot a comma?\n"
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]
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}
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],
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"source": [
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"from os import listdir\n",
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"from os.path import isfile, join\n",
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"\n",
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"files_list = [f for f in listdir('D:\\Jupyter_Notebook\\') if isfile(join('D:\\Jupyter_Notebook\\', f))]\n",
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"print(files_list)"
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]
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},
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{
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"cell_type": "markdown",
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"id": "5597a932-c89c-472d-b1fa-12217a4f114e",
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"metadata": {},
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"source": [
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"#### 10.Write a Python program to print without newline or space."
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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": 12,
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"id": "75b5cf02-c941-4169-8863-85b98748fc62",
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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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"# # # # # # # # # # "
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]
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}
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],
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"source": [
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"for i in range(10):\n",
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" print('#', end= ' ')"
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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 (ipykernel)",
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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": "3.12.6"
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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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}

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