Question

我有一个字典，它从文件中获取数据并将其放入列表中。我想建立一个搜索引擎，当我输入一个组件的名称或数量或价格时，它会找到所有的名称和它所拥有的打印信息（价格，数量，类别）。

输入

我无法让我的脚本从文件中的行读取信息。该文件的文字如下：

AMD A4-3300 2.5GHz 2-Core Fusion APU Box|5.179,00 din|58|opis|Procesor
AMD Athlon II X2 340 3.2GHz Box|4.299,00 din|8|opis|Procesor
INTEL Celeron G465 1.9GHz Box|3.339,00 din|46|opis|Procesor
INTEL Celeron Dual Core G550 2.6GHz Box|1.439,00 din|13|opis|Procesor

输出

这是我的代码应该是我的组件的搜索引擎，我只是不知道如何获取表单列表数据和目标数据完整信息，例如我输入关键字像AMD和seach引擎打印所有AMD在我的名称或价格上有AMD的组件我把价格范围和我得到了该范围内的所有价格。我尝试了一些东西，但它不会工作。请长时间回复。我翻译了我的代码，可能会遗漏一些行，但我希望你能得到这些。

def option_p_components():

option = 0
#component = []
components = []
while option == 0 :
    option_comp = option_p_components_str()
    option_k = int(raw_input("Chose option : ")
    print "" \
          ""

    if option_k != 1 and option_k != 2  :
        error = "!!!Error!!!"
        error_p = " you typed wrong command please try again  ."

        print "-" * 80
        print error.center(80)
        print error_p.center(80)
        print "-" * 80

        option = 0

    if option_k == 1 :
        option_p_d = 0
        print "Components search "

        print"-" * 80

        cu = temp_comp(components)
        print cu

        print "X)Working with components(editing, deleting )"
        print"-" * 80
        print "1)Change components "
        print "2)Editing components"
        print "3)Delating componetns"
        print "4)Components search "
        print "5)Back"
        print"-" * 80
        option_p_d = int(raw_input("Chose option :"))

        if Option_p_d == 2 :
            option_d = 0

            for I in range(5):

                u_component_name = raw_input("Unesite naziv komponente :")
                u_component_price= raw_input("Unestie cenu komponente:")
                u_component_quantity = raw_input("Unesite kolicinu komponente :")
                u_component_opis = raw_input("Unesite opis komponente :")
                u_component_category = raw_input("Unesite kategoriju komponente:")

                component = {"name_compo":u_komponenta_ime,
                              "price":u_komponenta_cena,
                              "quantity":u_komponenta_kolicina,
                              "opis":u_komponenta_opis,
                              "category":u_komponenta_kategorija}

                upis_komponente = saving_components(component)
                components.append(saving_components)


                print"-" * 80
                print "1)New component"
                print "2)Back"
                print"-" * 80

               option_d = int(raw_input("Odaberite opciju :"))

                if option_d == 1 :

                    option_k = 0

                elif option_d == 2 :

                    option_p_komponenti()

    elif option_k == 2 :

        print "Back"


def saving_components(component):

final_komponenta = component["name_compo"] + "|" + component["price"] + "|" + componenta["quantity"] + "|"\
                 + component["opis"] + "|" + component["category"]

file = open("Data/component.txt", "a")
file.write(final_component)
file.close

def reading_component（component）：

file = open("Data/component.txt", "r")
for line in file :

    name_comp, price, quantity, opis, category = line.split("|")

    komponenta = {"name_compo": name_comp,
                  "price": price,
                  "quantity": quantity,
                  "opis" : opis,
                  "category": category}

    # ovo izvlaci samo pojedinacne vrednosti iz recnika
    compon_info = "Name: " + component["name_compo"] + "\n" + "price: " + component["Price"]+"\n" +\
                      "Quantity:" + component["quantity"] + "\n" + "Opis: " + komponenta["opis"] + \
                      "\n" + "category: " + component["category"] + "\n"

    #print compon_info
    component.append(component)
    #print sortiranje(kompon_info)
    #print sorted([compon_info])
    #print compon_info.sort()
    #Vrti koliko ima u fajlu for ...a to je 7


file.close()
return component 

def temp_comp(components):
    pretraga_po_opisu(komponente)

def pretraga_po_opisu(komponente):
    kolicina = str(raw_input("Unesite kolicinu:"))
    for komponenta in komponente:

    if komponenta["kolicina"] == kolicina:
        print komponenta["kolicina"]
    return None

def pera(komponente, cena):
ulaz = input("Unesi")
list = komponente.pera("cena",cena)

Answer 1

您需要的只是csv.DictReader()以及每列的一系列键名：

with open(inputfilename, 'rb') as fileobj:
    reader = csv.DictReader(fileobj,
        ('name_compon', 'price', 'quantity', 'something_else', 'category'), 
        delimiter='|')
    for row in reader:
        print row

其中row是您想要的字典。

Answer 2

如果您想查看使用zip，可以随时在此处使用它：

component_dicts = []
components = ("name_compon", "price", "quanity", "category")
with open('/path/to/data') as f:
    for line in f.readlines():
        components_dicts.append(dict(zip(components, line.split("|")[:4]))) 
        #slicing the first four elements because you never say which 4 out of 5 you wanted.

for c in components_dict:
    print c

此处line.split("|")方法正在创建str列表，在找到"|"字符的任何地方划分字符串。

然后zip将返回list tuples，然后您将其输入dict：

# This is what it would look like after you zip the components tuple and the line.split("|") data
[(name_compon, 'AMD A4-3300 2.5GHz 2-Core Fusion APU Box'), (price, '5.179,00 din'), (quanity, 58), (type, opis)]

使用词典

2 个答案: