Question

看下面的代码：

import pandas as pd
data = pd.read_csv("list.csv")
class_names = data.classname.unique()
for ic in class_names:
print(data['classname' == ic])

在print(data['classname' == ic])上显示“ KeywordError：False”

但是如果直接给出classname值，它将打印输出，如下所示

print(data['classname'] == 'c1')

可能是什么问题？

Answer 1

如果要打印与特定类名相关的数据，请尝试：

//here is my retrofit client code 

public static Retrofit getClient() {
    HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
    interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
    OkHttpClient client = new OkHttpClient.Builder()
            .addInterceptor(interceptor)
            .build();

    if (retrofit != null) {
        return retrofit;
    }

    Gson gson = new GsonBuilder()
            .setLenient()
            .create();

    retrofit = new Retrofit.Builder()
            .baseUrl("http://192.168.0.201/")
            .addConverterFactory(GsonConverterFactory.create(gson))
            .client(client)
            .build();

    return retrofit;
}

// below is api call
@Multipart
@POST("/~amol/eflbudget/budgetmanagements/test/")
Call<ResponseBody> postMail(
        @Part("user_id") RequestBody userId,
        @Part("lead_id") RequestBody leadId,
        @Part("to") RequestBody to,
        @Part("cc_to") RequestBody ccId,
        @Part("template_id") RequestBody tempId,
        @Part("sender") RequestBody senderId,
        @Part("subject") RequestBody subject,
        @Part("message") RequestBody message,
        @Part MultipartBody.Part file
);

它将返回具有for ic in class_names: print(data[data['classname'] == ic]])类名的数据帧

ic将仅返回布尔序列

Answer 2

方括号的位置放置在错误的位置。

print(data['classname'] == ic)

KeyError：错误的熊猫数据框

2 个答案: