1#!python 

2""" 

3script which looks into the dependencies for a module 

4 

5.. todoext:: 

6 :title: add a script to look into dependencies 

7 :tag: done 

8 :cost: 0.5 

9 :date: 2016-09-18 

10 :hidden: 

11 :release: 1.1 

12 

13 Add a script to check the missing dependencies. 

14 

15.. versionadded:: 1.1 

16""" 

17from __future__ import print_function 

18import sys 

19import os 

20import argparse 

21 

22 

23def get_parser(): 

24 """ 

25 defines the way to parse the script ``pymy_deps`` 

26 """ 

27 parser = argparse.ArgumentParser( 

28 description='look dependencies for modules') 

29 parser.add_argument( 

30 'module', 

31 nargs="*", 

32 default="all", 

33 help='update only the list of modules included in this list or all modules if not specified or equal to all') 

34 return parser 

35 

36 

37def do_main(list_modules=None): 

38 """ 

39 calls function @see fn missing_dependencies 

40 

41 @param list_modules list of modules to update or None for all 

42 """ 

43 try: 

44 from pymyinstall.installhelper import missing_dependencies, get_module_dependencies 

45 except ImportError: 

46 pfolder = os.path.normpath(os.path.join( 

47 os.path.abspath(os.path.dirname(__file__)), "..", "..")) 

48 sys.path.append(pfolder) 

49 if "pymyinstall" in sys.modules: 

50 del sys.modules["pymyinstall"] 

51 if "pymyinstall.installhelper" in sys.modules: 

52 del sys.modules["pymyinstall.installhelper"] 

53 try: 

54 from pymyinstall.installhelper import missing_dependencies, get_module_dependencies 

55 except ImportError as e: 

56 mes = "pfolder={0}\nPATH:\n{1}".format( 

57 pfolder, "\n".join(sys.path)) 

58 raise ImportError(mes) from e 

59 res = missing_dependencies(list_modules) 

60 if len(res) > 0: 

61 for r in res: 

62 print(r) 

63 elif list_modules is not None and len(list_modules) > 0: 

64 for mod in list_modules: 

65 print("checking ", mod) 

66 res = get_module_dependencies(mod) 

67 for r, v in sorted(res.items()): 

68 print(" ", r, v) 

69 else: 

70 print("no missing dependencies") 

71 

72 

73def main(): 

74 """ 

75 calls function @see fn missing_dependencies but is meant to be added to scripts folder, 

76 parse command line arguments 

77 """ 

78 parser = get_parser() 

79 try: 

80 res = parser.parse_args() 

81 except SystemExit: 

82 print(parser.format_usage()) 

83 res = None 

84 

85 if res is not None: 

86 list_module = None if res.module in [ 

87 "all", "", "-", None, []] else res.module 

88 do_main(list_modules=list_module) 

89 

90 

91if __name__ == "__main__": 

92 main()