WindowsでSelenium＋PhantomJS＠Pythonでエラー
WindowsのPythonでseleniumしてみたらエラーが出た。
Exception ignored in: <bound method Service.__del__ of <selenium.webdriver.phantomjs.service.Service object at 0x00000000023B4CF8>> Traceback (most recent call last): File "D:\Miniconda3\envs\myenv3\lib\site-packages\selenium\webdriver\common\service.py", line 136, in __del__ File "D:\Miniconda3\envs\myenv3\lib\site-packages\selenium\webdriver\common\service.py", line 124, in stop AttributeError: 'NoneType' object has no attribute 'close'
Serviceクラスのstopメソッドでプロセス停止のため(?)のself.process.stdout.close()が実行されている？
しかしself.process.stdoutがNoneになっている？
部分的に抜粋
def __init__(self, executable, port=0, log_file=PIPE, env=None, start_error_message=""):
self.log_file = log_file
def start(self):
try:
self.process = subprocess.Popen(cmd, env=self.env,
close_fds=platform.system() != 'Windows',
stdout=self.log_file, stderr=self.log_file)
def stop(self):
try:
if self.process:
self.process.stdout.close()
大丈夫そうに見えるんだがなあ
17.1. subprocess — サブプロセス管理 — Python 2.7.x ドキュメント
この辺に「Windowsのみ～」みたいな文言が散見される。関係あるかも。
バージョン 3.3 で追加. Popen.stdin If the stdin argument was PIPE, this attribute is a writeable stream object as returned by open(). If the universal_newlines argument was True, the stream is a text stream, otherwise it is a byte stream. If the stdin argument was not PIPE, this attribute is None. Popen.stdout If the stdout argument was PIPE, this attribute is a readable stream object as returned by open(). Reading from the stream provides output from the child process. If the universal_newlines argument was True, the stream is a text stream, otherwise it is a byte stream. If the stdout argument was not PIPE, this attribute is None. Popen.stderr If the stderr argument was PIPE, this attribute is a readable stream object as returned by open(). Reading from the stream provides error output from the child process. If the universal_newlines argument was True, the stream is a text stream, otherwise it is a byte stream. If the stderr argument was not PIPE, this attribute is None.
stdoutにPIPEを指定していればNoneにはならない筈...
一旦self.log_fileに入れてるのがまずいのかな？
self.process = subprocess.Popen(cmd, env=self.env,
close_fds=platform.system() != 'Windows',
- stdout=self.log_file, stderr=self.log_file)
+ stdout=PIPE, stderr=PIPE)
