The apply() method shows you how to create a new column in a Pandas based on condition. The apply() method takes a function as an argument and applies that function to each row in the DataFrame. The function you pass to the apply() method should return a single value. The function sh...
def delete_rows_based_on_condition(file_path, column_name, condition): df = pd.read_excel(file_path) df = df[df[column_name] != condition] # 删除满足条件的行 df.to_excel(file_path, index=False) delete_rows_based_on_condition('example.xlsx', '状态', '无效') print("符合条件的行...
def__init__(self,left:Field,operation:str,right:Any): self.condition=f'`{left.name}`{operation}"{right}"' def__or__(self,other:"Compare"): self.condition=f'({self.condition}) OR ({other.condition})' returnself def__and__(self,other:"Compare"): self.condition=f'({self.condition...
"""function that will create borders in each row and column positions """ def show_grid(screen_Surface, grid): """ --- following two variables will show from where to draw lines--- """ side_x = top_left_x side_y = top_left_y for eachRow in range(grid): pygame.draw.line(scr...
The operator consists of a single equal sign (=), and it operates on two operands. The left-hand operand is typically a variable, while the right-hand operand is an expression.Note: As you already learned, the assignment operator doesn’t create an expression. Instead, it creates a ...
from sqlalchemy import create_engine, Column, Integer, String from sqlalchemy.ext.declarative import declarative_base from sqlalchemy.orm import sessionmaker # Define a database model Base = declarative_base() class User(Base): __tablename__ = 'users' id = Column(Integer, primary_key=True)...
Python开发常用组件、命令(干货) 1、生成6位数字随机验证码 import random import string def num_code(length=6): """ 生成长度为length的数字随机验证码 :param length: 验证码长度 :return: 验证码 """ return ''.join(random.choice(string.digits) for i in range(0, length)) ...
#Create table based on Base objclassPersonInfo(Base):__table__= Table('person_info', Base.metadata, Column('id', TINYINT(4)), Column('age', Integer), Column('name', VARCHAR(8), primary_key=True))#Need to search via person --> account#So build up a relationship between person an...
Step 2: In web authoring, from the Home page, click the “Create” option. Then select the “Flow” option. Or, from the Explore page, click the “New” option. Then, select the “Flow” option. Then click on the “Connect to Data” option. Step 3: Choose the file type or server...
size() # We can't print to the last column on Windows without it adding a # newline automatically, so reduce the width by one: WIDTH -= 1 HEIGHT -= 1 # Adjustment for the quit message at the bottom. NUMBER_OF_ANTS = 10 # (!) Try changing this to 1 or 50. PAUSE_AMOUNT = ...