Python InteractiveShellEmbed.banner方法代码示例

# 需要导入模块: from IPython.frontend.terminal.embed import InteractiveShellEmbed [as 别名]
# 或者: from IPython.frontend.terminal.embed.InteractiveShellEmbed import banner [as 别名]
# They also print an exit message every time they exit.

# Both the startup banner and the exit message default to None, and can be set
# either at the instance constructor or at any other time with the
# by setting the banner and exit_msg attributes.

# The shell instance can be also put in 'dummy' mode globally or on a per-call
# basis. This gives you fine control for debugging without having to change
# code all over the place.

# The code below illustrates all this.


# This is how the global banner and exit_msg can be reset at any point
ipshell.banner = 'Entering interpreter - New Banner'
ipshell.exit_msg = 'Leaving interpreter - New exit_msg'

def foo(m):
    s = 'spam'
    ipshell('***In foo(). Try %whos, or print s or m:')
    print 'foo says m = ',m

def bar(n):
    s = 'eggs'
    ipshell('***In bar(). Try %whos, or print s or n:')
    print 'bar says n = ',n
    
# Some calls to the above functions which will trigger IPython:
print 'Main program calling foo("eggs")\n'
foo('eggs')

# 需要导入模块: from IPython.frontend.terminal.embed import InteractiveShellEmbed [as 别名]
# 或者: from IPython.frontend.terminal.embed.InteractiveShellEmbed import banner [as 别名]

#.........这里部分代码省略.........
    # I don't know if we actually need volumes, but perhaps eventually...at least it's here now
    nova_volume = client.Client(OS_USERNAME, OS_PASSWORD, OS_TENANT_NAME, OS_AUTH_URL, service_type="volume")

    # XXX FIXME: Must be a better way to test the connection...
    try:
        nova_volume.volumes.list()
        nova_compute.servers.list()
    except:
        print >>sys.stderr, "ERROR: Could not connect to OpenStack via nova python client"
        sys.exit(1)

    #
    # Default variables
    #
    try:
        WAIT = args.wait
        TRIES = args.tries
    except:
        WAIT = 2
        TRIES = 200
        print "NOTICE: A required variable was not set"


    # Set breed and breedfile variables 
    # XXX - should see if shell is set too
    if args.BREED and args.BREEDFILE:
        BREED = args.BREED
        BREEDFILE = args.BREEDFILE
    else:
        # nothing to do
        print "NOTICE: neither breed file or breed set so nothing to do"
        sys.exit(0)

    # open the breedfile
    try:
        stream = open(BREEDFILE, 'r')
    except:
        print >>sys.stderr, "ERROR: Failed to open " + BREEDFILE
        sys.exit(1)  

    # load the breedfile
    try:
        breed =  yaml.load(stream)
    except:
        print >>sys.stderr, "ERROR: " + BREEDFILE + " is not a valid yaml file"
        sys.exit(1) 

    # If we asked for a shell, open one
    # NOTE: Not going to go any farther than this
    if args.SHELL:
        #ipython_shell(nova)
        ipshell = InteractiveShellEmbed()
        ipshell.confirm_exit = False
        ipshell.banner = ""
        ipshell.prompt_manager.in_template = r'mastiff# '
        ipshell.prompt_manager.in2_template = r'{color.Green}|{color.LightGreen}\D{color.Green}> '
        ipshell.prompt_manager.out_template = r'<\#> '
        ipshell()
        print "Exiting IPython shell..."
        sys.exit(0)

    # Grab the breed we are looking for from the command line
    # the idea being there could be several breeds in one config file
    # maybe
    instances = breed[str(BREED)]
    servers = []

    # Step through the instance information from the yaml file and boot a bunch of servers
    for i, k in instances.iteritems():
        for item in k:
            # grab each required variable if it's there
            if 'instances' in item:
                num_instances = item['instances']
            elif 'image' in item:
                image = item['image']
            elif 'playbook' in item:
                playbook = item['playbook']
            elif 'flavor' in item:
                flavor = item['flavor']
        
        if flavor is None:
            flavor = 1

        # Don't forget flavor XXX
        if num_instances is not None and image is not None:
            for j in range(int(num_instances)):
                name = str(BREED) + ' ' + str(i) + ' ' + str(j)
                server = nova_compute.servers.create(flavor=flavor,image=image,name=name)
                if server:
                    servers.append(server)

    #servers_up = False
    #while servers_up = False:
    #    for server in servers:
    #        if server.status == "ACTIVE":
                # try to get the IP address



    sys.exit(0)