scons编译报错的原因？

自己根据scons 的稳定写了一个简单的scons 编译，但是报错了，通过看scons user 的发现没有问题，不知道大家有没有学习scons 的，求解。

• # SConstruct
  
• import os
  
• 
  
• env = Environment()
  
• Export('env')
  
• # Storage of all objects to be linked
  
• 
  
• #pyhon , 定义一个list
  
• objs = []
  
• 
  
• for subdir in ['Application']:
  
•     o = SConscript('%s/SConscript' % subdir)
  
•     objs.append(o)
  
• 
  
• env.Program('prog', objs)
  
• 
  
• 
  
• #Sconscript
  
• Import('env')
  
• 
  
• 
  
• sub1_obj = env.Object(
  
•     source='main.c'
  
• )
  
• 
  
• print(sub1_obj)
  
• 
  
• Return(sub1_obj)
  

报错

• scons: Reading SConscript files ...
  
• ['main.o']
  
• AttributeError:  object has no attribute 'split':
  
•   File "/home/hanfengma/SCONS/Creating_a_Hierarchical_Build/SConstruct", line 12:
  
•     o = SConscript('%s/SConscript' % subdir)
  
•   File "/home/hanfengma/.local/lib/python3.10/site-packages/SCons/Script/SConscript.py", line 687:
  
•     return method(*args, **kw)
  
•   File "/home/hanfengma/.local/lib/python3.10/site-packages/SCons/Script/SConscript.py", line 623:
  
•     return _SConscript(self.fs, *files, **subst_kw)
  
•   File "/home/hanfengma/.local/lib/python3.10/site-packages/SCons/Script/SConscript.py", line 281:
  
•     exec(compile(scriptdata, scriptname, 'exec'), call_stack[-1].globals)
  
•   File "/home/hanfengma/SCONS/Creating_a_Hierarchical_Build/Application/SConscript", line 10:
  
•     Return(sub1_obj)
  
•   File "/home/hanfengma/.local/lib/python3.10/site-packages/SCons/Script/SConscript.py", line 132:
  
•     for v in var.split():
  
•   File "/home/hanfengma/.local/lib/python3.10/site-packages/SCons/Node/FS.py", line 675:
  
•     raise AttributeError("%r object has no attribute %r" %
  

看了user ，我也没有发现有什么问题