PIL图像联系表代码if语句语法错误排查求助

你的语法错误根源是paste方法的参数括号未闭合，并非if语句本身的问题——Python解析器因前面的括号不匹配，报错位置指向了后续的if行。

修正后的代码 #

# facecrops is a list of the PIL image objects
print(face_crops)
# create contact sheet to paste images to
contact_sheet=Image.new('RGB', (500,300))
# add each resized cropped image to the contact sheet
# use one variable for the X dimension, and one for the Y dimension.
x=0
y=0
for pic in face_crops:
    # first resize the cropped face
    smallpic = size_to_fit(pic)
    # Lets paste the current image into the contact sheet
    contact_sheet.paste(smallpic, (x, y, smallpic.size[0], smallpic.size[1]))  # 补全闭合括号
    # update our position. If it is going to be greater than the width of the image, then set it to 0
    # and update Y as well to point to the next "line" of the contact sheet.
    if (x + smallpic.width) >= contact_sheet.width:
        x=0
        y=y+smallpic.height
    else:
        x=x+smallpic.width
display(contact_sheet)

修改说明 #

• 补全contact_sheet.paste行末尾的闭合括号：原代码中这一行的参数元组只写了开头的(，未写结尾的)，导致语法结构断裂，Python无法正确解析后续代码，进而误报if语句行存在语法错误。
• 代码逻辑无需调整，仅修复括号问题即可解决报错。

内容的提问来源于stack exchange，提问作者ajeking