在 Python 中按字符串值分组并计算组数

Question

我有一段代码：

paragraphs = ['The tablets are filled into cylindrically shaped bottles made of white coloured\npolyethylene. The volumes of the bottles depend on the tablet strength and amount of\ntablets, ranging from 20 to 175 ml. The screw type cap is made of white coloured\npolypropylene and is equipped with a tamper proof ring.', 'PVC/PVDC blister pack', 'Blisters are made in a cold-forming process from an aluminium base web. Each tablet is\nfilled into a separate blister and a lidding foil of aluminium is welded on. The blisters\nare opened by pressing the tablets through the lidding foil.', '\n']

final_ref = [['Blister', 'Foil', 'Aluminium'], ['Blister', 'Base Web', 'PVC/PVDC'], ['Bottle', 'Cylindrically shaped Bottles', 'Polyethylene'], ['Bottle', 'Screw Type Cap', 'Polypropylene'], ['Blister', 'Base Web', 'PVC'], ['Blister', 'Base Web', 'PVD/PVDC'], ['Bottle', 'Square Shaped Bottle', 'Polyethylene']]

colours = ['White', 'Yellow', 'Blue', 'Red', 'Green', 'Black', 'Brown', 'Silver', 'Purple', 'Navy blue', 'Gray', 'Orange', 'Maroon', 'pink', 'colourless', 'blue']

TEXT_WITHOUT_COLOUR = 'Stage {counter} : Package Description: {sen} Values: {values}'

TEXT_WITH_COLOUR = TEXT_WITHOUT_COLOUR + ' Colour: {colour}'

counter = 1
result = []


def is_missing(words, sen):
    for w in words:
        if w.lower() not in sen.lower():
            return True
    return False


for words in final_ref:
    for sen in paragraphs:
        if is_missing(words, sen):
            continue

        kwargs = {
            'counter': counter,
            'sen': sen,
            'values': str(words)
        }

        if words[0] == 'Bottle':
            for wd in colours:
                if wd.lower() in sen.lower():
                    kwargs['colour'] = wd
                    break
            text_const = TEXT_WITH_COLOUR
        else:
            text_const = TEXT_WITHOUT_COLOUR

        result.append(text_const.format(**kwargs).replace('\n', '').replace('\t', ''))
        counter += 1

print(result)

返回输出为：

["Stage 1 : Package Description: Blisters are made in a cold-forming process from an aluminium base web. Each tablet isfilled into a separate blister and a lidding foil of aluminium is welded on. The blistersare opened by pressing the tablets through the lidding foil. Values: ['Blister', 'Foil', 'Aluminium']",

"Stage 2 : Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Cylindrically shaped Bottles', 'Polyethylene'] Colour: White",

"Stage 3 : Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Screw Type Cap', 'Polypropylene'] Colour: White"]

我要做的是检查“包说明”的内容，如果相同，我想将所有不同的“值”分组在同一个组号下

所以，我希望输出采用以下格式：

["Group 1: Package Description: Blisters are made in a cold-forming process from an aluminium base web. Each tablet isfilled into a separate blister and a lidding foil of aluminium is welded on. The blistersare opened by pressing the tablets through the lidding foil. Values: ['Blister', 'Foil', 'Aluminium'], 


"Group 2: Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Cylindrically shaped Bottles', 'Polyethylene']Colour: white", 

"Group 2: Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Screw Type Cap', 'Polypropylene']Colour: white"]

测试样本：

ls = ["Stage 1 : Package Description: Blisters are made in a thermo-forming process from a PVC/PVDC base web. Each tabletis filled into a separate blister and a lidding foil of aluminium is welded on. The blistersare opened by pressing the tablets through the lidding foil. PVDC foil is in contact withthe tablets. Values: ['Blister', 'Foil', 'Aluminium']",
     "Stage 2 : Package Description: Blisters are made in a thermo-forming process from a PVC/PVDC base web. Each tabletis filled into a separate blister and a lidding foil of aluminium is welded on. The blistersare opened by pressing the tablets through the lidding foil. PVDC foil is in contact withthe tablets. Values: ['Blister', 'Base Web', 'PVC/PVDC']",
     "Stage 3 : Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Cylindrically shaped Bottles', 'Polyethylene'], Colour: White",
     "Stage 4 : Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Screw Type Cap', 'Polypropylene'], Colour: White",
     "Stage 5 : Package Description: Blisters are made in a thermo-forming process from a PVC/PVDC base web. Each tabletis filled into a separate blister and a lidding foil of aluminium is welded on. The blistersare opened by pressing the tablets through the lidding foil. PVDC foil is in contact withthe tablets. Values: ['Blister', 'Base Web', 'PVC']",
     "Stage 6 : Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Tamper Proof Ring', ''], Colour: White",
     "Stage 7 : Package Description: Blisters are made in a thermo-forming process from a PVC/PVDC base web. Each tabletis filled into a separate blister and a lidding foil of aluminium is welded on. The blistersare opened by pressing the tablets through the lidding foil. PVDC foil is in contact withthe tablets. Values: ['Blister', 'Base Web', 'PVDC']",
     "Stage 8 : Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Cap', 'Polypropylene'], Colour: White"]

此示例的预期输出为：

["Group 1 : Package Description: Blisters are made in a thermo-forming process from a PVC/PVDC base web. Each tabletis filled into a separate blister and a lidding foil of aluminium is welded on. The blistersare opened by pressing the tablets through the lidding foil. PVDC foil is in contact withthe tablets. Values: ['Blister', 'Foil', 'Aluminium']",
"Group 1 : Package Description: Blisters are made in a thermo-forming process from a PVC/PVDC base web. Each tabletis filled into a separate blister and a lidding foil of aluminium is welded on. The blistersare opened by pressing the tablets through the lidding foil. PVDC foil is in contact withthe tablets. Values: ['Blister', 'Base Web', 'PVC']"
 "Group 1 : Package Description: Blisters are made in a thermo-forming process from a PVC/PVDC base web. Each tabletis filled into a separate blister and a lidding foil of aluminium is welded on. The blistersare opened by pressing the tablets through the lidding foil. PVDC foil is in contact withthe tablets. Values: ['Blister', 'Base Web', 'PVC/PVDC']",
"Group 1 : Package Description: Blisters are made in a thermo-forming process from a PVC/PVDC base web. Each tabletis filled into a separate blister and a lidding foil of aluminium is welded on. The blistersare opened by pressing the tablets through the lidding foil. PVDC foil is in contact withthe tablets. Values: ['Blister', 'Base Web', 'PVDC']",

 "Group 2 : Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Cylindrically shaped Bottles', 'Polyethylene'], Colour: White",

 "Group 2 : Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Screw Type Cap', 'Polypropylene'], Colour: White",

 "Group 2 : Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Tamper Proof Ring', ''], Colour: White",

 "Group 2 : Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Cap', 'Polypropylene'], Colour: White"]

Answer 1

让ls 成为上面的输出，然后

import re
from itertools import groupby
fun = lambda x: re.search("Package Description:.*?:",x).group()
sum([re.sub("Stage \\d",f"Group {i+1}","SPLIT".join(k)).split("SPLIT") for i,(_,k) in enumerate(groupby(sorted(ls,key = fun),key = fun))],[])


["Group 1 : Package Description: Blisters are made in a thermo-forming process from a PVC/PVDC base web. Each tabletis filled into a separate blister and a lidding foil of aluminium is welded on. The blistersare opened by pressing the tablets through the lidding foil. PVDC foil is in contact withthe tablets. Values: ['Blister', 'Foil', 'Aluminium']",
 "Group 1 : Package Description: Blisters are made in a thermo-forming process from a PVC/PVDC base web. Each tabletis filled into a separate blister and a lidding foil of aluminium is welded on. The blistersare opened by pressing the tablets through the lidding foil. PVDC foil is in contact withthe tablets. Values: ['Blister', 'Base Web', 'PVC/PVDC']",
 "Group 1 : Package Description: Blisters are made in a thermo-forming process from a PVC/PVDC base web. Each tabletis filled into a separate blister and a lidding foil of aluminium is welded on. The blistersare opened by pressing the tablets through the lidding foil. PVDC foil is in contact withthe tablets. Values: ['Blister', 'Base Web', 'PVC']",
 "Group 1 : Package Description: Blisters are made in a thermo-forming process from a PVC/PVDC base web. Each tabletis filled into a separate blister and a lidding foil of aluminium is welded on. The blistersare opened by pressing the tablets through the lidding foil. PVDC foil is in contact withthe tablets. Values: ['Blister', 'Base Web', 'PVDC']",
 "Group 2 : Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Cylindrically shaped Bottles', 'Polyethylene'], Colour: White",
 "Group 2 : Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Screw Type Cap', 'Polypropylene'], Colour: White",
 "Group 2 : Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Tamper Proof Ring', ''], Colour: White",
 "Group 2 : Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Cap', 'Polypropylene'], Colour: White"]

以更简洁的方式编写：

import re
from itertools import groupby
fun = lambda x: re.search("Package Description:.*?:",x).group()
a = []
for i,(_, k) in enumerate(groupby(sorted(ls,key = fun),key = fun)):
    a += (re.sub("Stage \\d",f"Group {i+1}","SPLIT".join(k)).split("SPLIT"))

a

["Group 1 : Package Description: Blisters are made in a thermo-forming process from a PVC/PVDC base web. Each tabletis filled into a separate blister and a lidding foil of aluminium is welded on. The blistersare opened by pressing the tablets through the lidding foil. PVDC foil is in contact withthe tablets. Values: ['Blister', 'Foil', 'Aluminium']",
 "Group 1 : Package Description: Blisters are made in a thermo-forming process from a PVC/PVDC base web. Each tabletis filled into a separate blister and a lidding foil of aluminium is welded on. The blistersare opened by pressing the tablets through the lidding foil. PVDC foil is in contact withthe tablets. Values: ['Blister', 'Base Web', 'PVC/PVDC']",
 "Group 1 : Package Description: Blisters are made in a thermo-forming process from a PVC/PVDC base web. Each tabletis filled into a separate blister and a lidding foil of aluminium is welded on. The blistersare opened by pressing the tablets through the lidding foil. PVDC foil is in contact withthe tablets. Values: ['Blister', 'Base Web', 'PVC']",
 "Group 1 : Package Description: Blisters are made in a thermo-forming process from a PVC/PVDC base web. Each tabletis filled into a separate blister and a lidding foil of aluminium is welded on. The blistersare opened by pressing the tablets through the lidding foil. PVDC foil is in contact withthe tablets. Values: ['Blister', 'Base Web', 'PVDC']",
 "Group 2 : Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Cylindrically shaped Bottles', 'Polyethylene'], Colour: White",
 "Group 2 : Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Screw Type Cap', 'Polypropylene'], Colour: White",
 "Group 2 : Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Tamper Proof Ring', ''], Colour: White",
 "Group 2 : Package Description: The tablets are filled into cylindrically shaped bottles made of white colouredpolyethylene. The volumes of the bottles depend on the tablet strength and amount oftablets, ranging from 20 to 175 ml. The screw type cap is made of white colouredpolypropylene and is equipped with a tamper proof ring. Values: ['Bottle', 'Cap', 'Polypropylene'], Colour: White"]