首先,我们导入了datetime模块,该模块提供了处理日期和时间的功能。 然后,我们定义了一个名为get_previous_year_end的函数,用于获取上一年的年末日期。 在函数内部,我们首先使用datetime.date.today()函数获取当前日期,并将其保存在current_date变量中。 接下来,我们使用datetime.timedelta(days=365)函数创建一个表示一年...
importdatetimedefget_previous_month(date):# 获取指定日期的前一个月year=date.year month=date.monthifmonth==1:year-=1month=12else:month-=1returndatetime.date(year,month,1)# 测试代码date=datetime.date(2022,1,15)previous_month=get_previous_month(date)print(previous_month)# 输出:2021-12-01 1...
Year的数据格式为Object,我们希望将其转化为int64。首先通过values_counts查看其中唯一值的情况。 df['Year'].value_counts() 我们发现,1934年以后的Year格式都正常,但1934年以前的六届,Year的格式为YearPrevious/YearPresent,无法储存为int64格式。因此我们需要对这六种值进行处理。经过查询,对应的前六届奥斯卡的...
'year': # 上一年的日期 previous_date = current_date - datetime.timedelta(days=365) else: previous_date = None # 非法类别 return previous_date # 测试例子 print(get_previous_date('week')) # 获取上一周的日期 print(get_previous_date('month')) # 获取上一个月的日期 print(get_previous...
plt.figure(figsize=(16,12),dpi=80)fori,yinenumerate(years):ifi>0:plt.plot('month','value',data=df.loc[df.year==y,:],color=mycolors[i],label=y)plt.text(df.loc[df.year==y,:].shape[0]-.9,df.loc[df.year==y,'value'][-1:].values[0],y,fontsize=12,color=mycolors[i])...
# Prepare datadf['year'] = [d.year for d in df.date]df['month'] = [d.strftime('%b') for d in df.date]years = df['year'].unique() # Draw Plotfig, axes = plt.subplots(1, 2, figsize=(20,7), dpi= 80)sns.boxplo...
# has been prepopulated in the previous query. print(book.publish.name) 7.4.2 多外键查询 这是针对publish的外键查询,如果是另外一个外键呢?让我们一起看下: book=models.Book.objects.select_related("publish").get(nid=1) print(book.authors.all()) ...
# Prepare datadf['year'] = [d.year for d in df.date]df['month'] = [d.strftime('%b') for d in df.date]years = df['year'].unique() # Prep Colorsnp.random.seed(100)mycolors = np.random.choice(list(mpl.colors.XKCD_COLORS.keys()), len(years), replace=False) ...
today = date.today()# dd/mm/YYd1 = today.strftime("%d/%m/%Y")print("d1 =", d1)# Textual month, day and yeard2 = today.strftime("%B %d, %Y")print("d2 =", d2)# mm/dd/yd3 = today.strftime("%m/%d/%y")print("d3 =", d3)# Month abbreviation, day and yeard4 = ...
The entire Python directory is cleaned of temporary files that may have resulted from a previous compilation. An instrumented version of the interpreter is built, using suitable compiler flags for each flavor. Note that this is just an intermediary step. The binary resulting from this step is not...