pycharm 终端并运行给出不同的结果 [英] pycharm terminal and run giving different results

问题描述

使用 Pycharm 编写用于加载和格式化固定宽度文件的 python 脚本，当我在终端(在 Pycharm 内或本地)中运行脚本和在 Pycharm 中使用运行选项时，我得到了不同的结果.为什么会出现这种情况，哪个是正确的?

 with open('uk_dcl_mrg.txt', 'rb') as f:ct = 0对于 f 中的行:ct += 1####输出####for i in layout: ## 循环创建字典headerdict[i[0]] = line[i[1]:i[2]]if (headerdict['CORP-STATUS-IND'] == "\x9f"):headerdict['CORP-STATUS-IND'] = '0'elif headerdict['CORP-STATUS-IND'] == '?':headerdict['CORP-STATUS-IND'] = '1'别的:headerdict['CORP-STATUS-IND'] = '2'打印(标题)如果 ct >= 6:休息

终端输出

'CORP-STATUS-IND': '0',

在 Pycharm 的运行选项中输出

'CORP-STATUS-IND': '2',

终端输出是我所期望的.

解决方案

当我不确定时，我通常不会回答，但在这里我很确定:

您可能正在运行 2 个不同的解释器版本.控制台中的 Python 2 和 PyCharm 中的 Python 3.

通过在脚本中插入以下行来确认:

print(sys.version)

问题是这一行:

 with open('uk_dcl_mrg.txt', 'rb') as f:

由于您以二进制形式打开文件，因此在 Python 3 中，行是二进制的，而不是字符串，因此将它们与字符串进行比较总是失败.

<预><代码>>>>b'\x9f'=='\x9f'错误的>>>b'\x9f'[0]159>>>'\x9f'[0]'\x9f'

在 Python 2 中，无论文件打开模式如何，行都是 str 类型，这说明它有效.

像这样修复你的代码:

with open('uk_dcl_mrg.txt', 'r') as f:

它适用于所有版本的python.但我建议你放弃 Python 2，除非你被绑定到 Python 2 并默认安装 Python 3.

Using Pycharm to write a python script for loading and formatting a fixed width file I'm getting different results when I run the script in terminal (within Pycharm or locally) and when using the run option in Pycharm. Any reason why this is the case and which is correct?

with open('uk_dcl_mrg.txt', 'rb') as f:
ct = 0
for line in f:
    ct += 1

    #### OUTOUT ####
    for i in layout:  ## Loop to create dictionary
        headerdict[i[0]] = line[i[1]:i[2]]


    if (headerdict['CORP-STATUS-IND'] == "\x9f"):
        headerdict['CORP-STATUS-IND'] = '0'

    elif headerdict['CORP-STATUS-IND'] == '?':
        headerdict['CORP-STATUS-IND'] = '1'

    else:
        headerdict['CORP-STATUS-IND'] = '2'


    print(headerdict)

    if ct >= 6:
        break

Output in Terminal

'CORP-STATUS-IND': '0',

Output in the run option of Pycharm

'CORP-STATUS-IND': '2',

The terminal output is what I am expecting.

解决方案

I'm usually not answering when I'm not sure but here I'm pretty sure:

You're probably running 2 different interpreter versions. Python 2 in your console, and Python 3 in PyCharm.

Confirm it by inserting the following line in your script:

print(sys.version)

The problem is this line:

with open('uk_dcl_mrg.txt', 'rb') as f:

since you're opening the file as binary, in Python 3, lines are binary, not string, so comparing them to string always fails.

>>> b'\x9f'=='\x9f'
False
>>> b'\x9f'[0]
159
>>> '\x9f'[0]
'\x9f'

In Python 2, the lines are of str type regardless of the file open mode, which explains that it works.

Fix your code like this:

with open('uk_dcl_mrg.txt', 'r') as f:

It will work for all versions of python. But I recommend that you drop Python 2 unless you're tied to it and install Python 3 by default.

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