{"cells":[{"cell_type":"code","execution_count":31,"metadata":{},"outputs":[],"source":["1. Write a Python program to read 5 random lines from file A and then write them to file B. "]},{"cell_type":"code","execution_count": null,"metadata":{},"outputs":[],"source":["import os,random\n","os.chdir(\"C:\\\\Users\\\\tan\\\\Desktop\") "]},{"cell_type":"code","execution_count":32,"metadata":{},"outputs":[{"data":{"text/plain":["'C:\\\\Users\\\\tan\\\\Desktop'"]},"execution_count":32,"metadata":{},"output_type":"execute_result"}],"source":["os.getcwd()"]},{"cell_type":"code","execution_count":65,"metadata":{},"outputs":[],"source":["s=[]\n","with open('A.txt') as tasks:\n"," tasks_content=tasks.readlines()\n"," i=len(tasks_content)\n"," while(len(s)<5):\n"," x=random.randint(0,i-1)\n"," if x not in s:\n"," s.append(x)\n","f=open('B.txt','w')\n","for i in s:\n"," f.write(tasks_content[i])\n","f.close()"]},{"cell_type":"code","execution_count": null,"metadata":{},"outputs":[],"source":["2. Ask users to enter their name and gender first. Then print it to the screen for user confirmation. After that, append the name and gender to file user_info.txt as a new line. "]},{"cell_type":"code","execution_count":82,"metadata":{},"outputs":[{"name":"stdout","output_type":"stream","text":["Please provide your name:tan\n","Please provide your gender:male\n","Please confirm your information\n","name: tan gender: male\n","YES OR NO?YES\n"]}],"source":["word=input('Please provide your name:')\n","word2=input('Please provide your gender:')\n","print(\"Please confirm your information\\nname: \"+word+\" gender: \"+word2)\n","word3=input('YES OR NO?')\n","if word3=='YES':\n"," f=open('C:\\\\Users\\\\tan\\\\Desktop\\\\user_info.txt','w')\n"," f.write(word+\" \"+word2)\n"," f.close()"]},{"cell_type":"code","execution_count": null,"metadata":{},"outputs":[],"source":[]}],"metadata":{"kernelspec":{"display_name":"Python 3","language":"python","name":"python3"},"language_info":{"codemirror_mode":{"name":"ipython","version":3},"file_extension":".py","mimetype":"text/x-python","name":"python","nbconvert_exporter":"python","pygments_lexer":"ipython3","version":"3.8.3"}},"nbformat":4,"nbformat_minor":4}
