AppVeyor 中的 UTF-8，Python 3.6

Question

一、总结

我不知道如何为 AppVeyor 构建使用非 ascii 符号。

---

2. 设置

我的简单SashaAppVeyorEncoding.py文件：

print('???? ?????????!')

我的简单appveyor.yml文件：

environment:

  matrix:

    - PYTHON: "C:\\Python36-x64"
      PYTHON_VERSION: "3.6.3"
      PYTHON_ARCH: "64"
      PIP: "C:\\Python36-x64\\Scripts\\pip"

platform: x64

build_script:

  - cmd: "%PYTHON%\\python SashaAppVeyorEncoding.py"

我以 UTF-8 编码保存的两个文件。

---

3. 预期行为

如果我SashaAppVeyorEncoding.py在终端或解释器SublimeREPL 中运行文件，我会得到：

D:\SashaPythonista>python SashaAppVeyorEncoding.py
???? ?????????!

如果我的SashaAppVeyorEncoding.py文件不包含西里尔符号：

print('Sasha superior!')

AppVeyor 构建成功通过：

Build started
git clone -q --branch=master https://github.com/Kristinita/SashaPythonista.git C:\projects\sashapythonista-7l3yk
git checkout -qf 3a0393a5b9548a5debabebfc5e28d17f3000a768
%PYTHON%\python SashaAppVeyorEncoding.py
Sasha superior!
Discovering tests...OK
Build success

---

4. 实际行为

我的 AppVeyor 构建失败：

Build started
git clone -q --branch=master https://github.com/Kristinita/SashaPythonista.git C:\projects\sashapythonista-7l3yk
git checkout -qf 262cef287d45b1548640b9a773b680de90b7d138
%PYTHON%\python SashaAppVeyorEncoding.py
Traceback (most recent call last):
  File "SashaAppVeyorEncoding.py", line 1, in <module>
    print('\u0421\u0430\u0448\u0430 \u043d\u0430\u0438\u043b\u0443\u0447\u0448\u0430\u044f!')
  File "C:\Python36-x64\lib\encodings\cp1252.py", line 19, in encode
    return codecs.charmap_encode(input,self.errors,encoding_table)[0]
UnicodeEncodeError: 'charmap' codec can't encode characters in position 0-3: character maps to <undefined>
Command exited with code 1

---

5. 没有帮助

1. 我# -*- coding: utf-8 -*-在SashaAppVeyorEncoding.py文件顶部添加，
2. 我将chcp 65001命令添加到appveyor.yml文件中，
3. 我安装win-unicode-console到appveyor.yml文件，

我更新的SashaAppVeyorEncoding.py文件：

# -*- coding: utf-8 -*-
print('???? ?????????!')

我更新的appveyor.yml文件：

environment:

  matrix:

    - PYTHON: "C:\\Python36-x64"
      PYTHON_VERSION: "3.6.3"
      PYTHON_ARCH: "64"
      PIP: "C:\\Python36-x64\\Scripts\\pip"

platform: x64

install:

  - cmd: "%PIP% install win-unicode-console"
  - cmd: chcp 65001

build_script:

  - cmd: "%PYTHON%\\python SashaAppVeyorEncoding.py"

我更新的 AppVeyor 版本：

Build started
git clone -q --branch=master https://github.com/Kristinita/SashaPythonista.git C:\projects\sashapythonista-7l3yk
git checkout -qf 11df07d4c424cd8e28a1b0db0f43906aa63f42f1
Running Install scripts
%PIP% install win-unicode-console
Collecting win-unicode-console
  Downloading win_unicode_console-0.5.zip
Installing collected packages: win-unicode-console
  Running setup.py install for win-unicode-console: started
    Running setup.py install for win-unicode-console: finished with status 'done'
Successfully installed win-unicode-console-0.5
chcp 65001
Active code page: 65001
%PYTHON%\python SashaAppVeyorEncoding.py
Traceback (most recent call last):
  File "SashaAppVeyorEncoding.py", line 2, in <module>
    print('\u0421\u0430\u0448\u0430 \u043d\u0430\u0438\u043b\u0443\u0447\u0448\u0430\u044f!')
  File "C:\Python36-x64\lib\encodings\cp1252.py", line 19, in encode
    return codecs.charmap_encode(input,self.errors,encoding_table)[0]
UnicodeEncodeError: 'charmap' codec can't encode characters in position 0-3: character maps to <undefined>
Command exited with code 1

---

6. 当地环境

操作系统和版本：
Windows 10 Enterprise LTSB 64 位 EN
Python：
3.6.3
chcp：
活动代码页：65001

Answer 1

它看起来python不会打印到 AppVeyor 上的控制台——输出被重定向。因此locale.getpreferredencoding()，用于在打印到标准输出时将 Unicode 文本编码为字节。cp1252仅支持一百万个 Unicode 字符中的少数几个。要更改sys.stdout.encoding此处，您可以set PYTHONIOENCODING=utf-8envvar -- utf-8 字符编码支持所有 Unicode 字符。