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python - Python 字典没有正确复制导致重复，如何解决这个问题？

问题描述

我正在编写一个函数，它应该比较列表（测试的重要基因）并列出所有可能的列表选择组合的共同元素（基因）。

这些结果将用于维恩图……

测试和基因的数量是灵活的。

输入 JSON 文件如下所示：

| test              | genes                                                 |
|-----------------  |---------------------------------------------------    |
| p-7trt_1/0con_1   | [ENSMUSG00000000031, ENSMUSG00000000049, ENSMU...     |
| p-7trt_2/0con_1   | [ENSMUSG00000000031, ENSMUSG00000000037, ENSMU...     |
| p-7trt_1/0con_2   | [ENSMUSG00000000037, ENSMUSG00000000049, ENSMU...     |
| p-7trt_2/0con_2   | [ENSMUSG00000000028, ENSMUSG00000000031, ENSMU...     |
| p-7trt_1/0con_3   | [ENSMUSG00000000088, ENSMUSG00000000094, ENSMU...     |
| p-7trt_2/0con_3   | [ENSMUSG00000000028, ENSMUSG00000000031, ENSMU...     |

所以函数如下：

import pandas as pd
def get_venn_compiled_data(dir_loc):
    """return json of compiled data for the venn thing
    """
    data_frame = pd.read_json(dir_loc + "/venn.json", orient="records")
    number_of_tests = data_frame.shape[0]
    venn_data = []
    venn_data_point = {"tests": [], "genes": []} # list of genes which are common across listed tests
    binary = lambda x: bin(x)[2:] # to directly get the binary number
    for dec_number in range(1, 2 ** number_of_tests):

        # resetting
        venn_data_point["tests"] = []
        venn_data_point["genes"] = []

        # using a binary number to get all the cases
        for index, state in enumerate(binary(dec_number)):
            if state == "0":
                continue

            # putting in all the genes from the first test
            if venn_data_point["tests"] == []:
                venn_data_point["genes"] = data_frame["data"][index].copy()

            # removing the ones which are not common in current genes state and this.tests
            else:
                for gene_index, gene in enumerate(venn_data_point["genes"]):
                    if gene not in data_frame["data"][index]:
                        venn_data_point["genes"].pop(gene_index)

            # putting the test in the tests list
            venn_data_point["tests"].append(data_frame["name"][index])

        venn_data.append(venn_data_point.copy())
    return venn_data

我基本上是在滥用二进制数生成所有可能的 1 和 0 组合的事实，因此二进制数的每个位置都与测试相对应，对于每个二进制数，如果存在 0，则不采用与该测试对应的列表用于列表比较。

我尽力解释了，如果我不清楚，请在评论中提问。

运行该函数后，我得到一个输出，其中存在重复测试集的随机位置。

这是测试输入文件。

和

这就是输出的结果

非常感谢任何帮助谢谢。

标签： pythonjsonpandasdictionarylist-comparison

解决方案

我意识到我犯了什么错误

我假设二进制函数总是会神奇地生成具有我需要的位置数量的字符串，但事实并非如此。

在更新二进制函数以添加这些零之后，一切正常。

import pandas as pd
def get_venn_compiled_data(dir_loc):
    """return json of compiled data for the venn thing
    """
    # internal variables
    data_frame = pd.read_json(dir_loc + "/venn.json", orient="records")
    number_of_tests = data_frame.shape[0]
    venn_data = []

    # defining internal function
    def binary(dec_no, length=number_of_tests):
        """Just to convert decimal number to binary of specified length
        """
        bin_number = bin(dec_no)[2:]

        if len(bin_number) < length:
            bin_number = "0" * (length - len(bin_number)) + bin_number

        return bin_number

    # list of genes which are common across listed tests
    venn_data_point = {
        "tests": [],
        "genes": [],
    }


    for dec_number in range(1, 2 ** number_of_tests):

        # resetting
        venn_data_point["tests"] = []
        venn_data_point["genes"] = []

        # using a binary number to get all the cases
        for index, state in enumerate(binary(dec_number)):
            if state == "0":
                continue

            # putting in all the genes from the first test
            if venn_data_point["tests"] == []:
                venn_data_point["genes"] = data_frame["data"][index].copy()

            # removing the ones which are not common in current genes state and this.tests
            else:
                for gene_index, gene in enumerate(venn_data_point["genes"]):
                    if gene not in data_frame["data"][index]:
                        venn_data_point["genes"].pop(gene_index)

            # putting the test in the tests list
            venn_data_point["tests"].append(data_frame["name"][index])

        venn_data.append(venn_data_point.copy())
    return venn_data

如果其他人对此有更优化的算法，我们将不胜感激。

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