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-rw-r--r--youtube_dl/downloader/external.py10
1 files changed, 5 insertions, 5 deletions
diff --git a/youtube_dl/downloader/external.py b/youtube_dl/downloader/external.py
index 4e299b4ee..daedf66de 100644
--- a/youtube_dl/downloader/external.py
+++ b/youtube_dl/downloader/external.py
@@ -53,7 +53,7 @@ class ExternalFD(FileDownloader):
@classmethod
def available(cls):
- return check_executable(cls.get_basename(), cls.available_opt)
+ return check_executable(cls.get_basename(), [cls.AVAILABLE_OPT])
@classmethod
def supports(cls, info_dict):
@@ -86,7 +86,7 @@ class ExternalFD(FileDownloader):
class CurlFD(ExternalFD):
- available_opt = ['-V']
+ AVAILABLE_OPT = '-V'
def _make_cmd(self, tmpfilename, info_dict):
cmd = [self.exe, '--location', '-o', tmpfilename]
@@ -101,7 +101,7 @@ class CurlFD(ExternalFD):
class AxelFD(ExternalFD):
- available_opt = ['-V']
+ AVAILABLE_OPT = '-V'
def _make_cmd(self, tmpfilename, info_dict):
cmd = [self.exe, '-o', tmpfilename]
@@ -113,7 +113,7 @@ class AxelFD(ExternalFD):
class WgetFD(ExternalFD):
- available_opt = ['--version']
+ AVAILABLE_OPT = '--version'
def _make_cmd(self, tmpfilename, info_dict):
cmd = [self.exe, '-O', tmpfilename, '-nv', '--no-cookies']
@@ -128,7 +128,7 @@ class WgetFD(ExternalFD):
class Aria2cFD(ExternalFD):
- available_opt = ['-v']
+ AVAILABLE_OPT = '-v'
def _make_cmd(self, tmpfilename, info_dict):
cmd = [self.exe, '-c']