1

I receive similar emails from multiple senders and use regular expressions m and n below to pull out needed strings. That part is working fine.

Regular expression o however is what has me confused. The text file I am reading is a combination of 9 email messages saved to one text file and opened in Python as a string. Original Sender (regex o) occurs at the beginning of each new message in the file (9 times)

I want to write the same Original Sender after each CUSIP and NAME found until a different Original Sender is matched.

I am using xlwt3 and wincom32.

Sample from the text file with combined emails which is very standard:

--- Original Sender: TOM MADEUPNAME, SOME BANK, N. ---
----- Original Message -----
From: TOM MADEUPNAME (SOME BANK, N.)
To: BOB THISISMYEMAIL (XYZ INVESTMENTS, INC)
At:  8/31  8:53:25
**Offerings**

Mezz ReRemics
Cusip      Description       Original Current Cashflow Collat Offering
05531UAB6  BCAP 2009-RR5 1A2   18,745  18,745 Snr Sup  Fxd      45.000

Prime/Alt-A Fixed
Cusip      Description       Original Current Cashflow Collat Offering
059487AE8  BOAA 2006-6 CB5     25,940  14,350 Seq      Fxd      83.000
12544XAX3  CWHL 2007-9 A13     10,190  10,190 Ssnr Nas Fxd      92.500
17312XAJ3  CMSI 2007-4 1A9      2,871   2,741 Spr Snr  Fxd      86.000

--- Original Sender: JOE MADEUPNAME, EUROPEAN BANK SECURI ---
----- Original Message -----
From: JOE MADEUPNAME (EUROPEAN BANK SECURI)
To: BOB THISISMYEMAIL (XYZ INVESTMENTS, INC)
At:  8/31  8:20:16

8-31-2011 

Alt-A Fixed
Bond            O/F    C/F    Cpn  FICO CAL WALB  60+    Notes             Offer
CSMC 06-9 7A1   25.00  11.97  L+45  728  26  578  35.21  FLT,AS,0.0%       50-00
LXS 07-10H 2A1  68.26  34.01  L+16  744   6  125  33.98  SS,9.57%          42-00
CSMC 06-7 9A1   15.00   7.81  L+30  688   5  198  46.46  SS,0.0%           29-16

Prime Hybrid 
Bond            O/F     C/F   Cpn  FICO CAL WALB  60+    Notes             Offer
SARM 05-18 6A1  14.56   6.01  2.58  730  46  432  15.87  SEA,SS,5/1,12.3%  78-00

Alt-A Hybrid
Bond            O/F    C/F    Cpn  FICO CAL WALB  60+    Notes             Offer
ARMT 05-12 2A1  23.78  10.71  3.07  712  48  556  35.32  SS,5/1,4.9%       *SOLD

Option Arm
Bond                O/F    C/F   Cpn  FICO CAL WALB  60+    Notes          Offer
DBALT 07-OA4 1A1B  10.00   7.25  L+13  716  63  562  47.17  SS,OC,42.2%    64-16
--------------------------------------------------------------------------------------

Updated - working

count_cusip = 0
count_name = 0
count_sender = 0 
cur_sender = ''
for line in lines:

    o = re.search(r"Original Sender:\s\b\w+\s\w+", line)
    if o:
        count_sender += 1
        ws.write(count_sender,2,o.group(0))
        ws.write(count_sender,2,cur_sender)
        cur_sender = o.group(0)

    m = re.search('[0-9]{3}[a-zA-Z0-9]{6}', line)
    if m:
        count_cusip += 1
        ws.write(count_cusip,0,m.group(0))
        ws.write(count_cusip,2,cur_sender)

    n = re.search('[A-Z]{3,5}\s[0-9]{1,4}\D{1,3}\S{1,3}\s{1,2}\w+', line)
    if n:
        count_name += 1
        ws.write(count_name,1,n.group(0))
        ws.write(count_cusip,2,cur_sender)

        o = re.search(r"Original Sender:\s\b\w+\s\w+", line)
        if o:
            cur_sender = o.group(0)

        ws.write(count_name,2,cur_sender)

Updated Output - as desired.

CUSIP   Bond Name           Original Sender
00442PAD2   ACE 2006-OP1 A2B        Original Sender: Nick Madeupname
12557YAE7   ARMT 05-12 2A1          Original Sender: Bobby Madeupname
39153VAT1   CSMC 06-9 7A1           Original Sender: Bobby Madeupname
05377RAE4   LXS 07-10H 2A1          Original Sender: Jane Madeupname
02005HAF0   CSMC 06-7 9A1           Original Sender: Jane Madeupname
4

2 回答 2

1

由于您没有显示输出样本,因此您的问题并不完全清楚,但这是一个有根据的猜测:

count_cusip = 0
count_name = 0
count_sender = 0 
cur_sender = ''
for line in lines:

    m = re.search('[0-9]{3}[a-zA-Z0-9]{6}', line)
    if m:
        count_cusip += 1
        ws.write(count_cusip,0,m.group(0))
        ws.write(count_cusip,2,cur_sender)

    n = re.search('[A-Z]{3,5}\s[0-9]{1,4}\D{1,3}\S{1,3}\s{1,2}\w+', line)
    if n:
        count_name += 1
        ws.write(count_name,1,n.group(0))
        ws.write(count_name,2,cur_sender)

    o = re.search(r"Original Sender:\s\b\w+\s\w+", line)
    if o:
        count_sender += 1
        cur_sender = o.group(0)

遇到时不要写原始发件人,您需要保存它并为每个 cusip 和名称写当前值。

于 2011-09-01T02:31:05.227 回答
1

您可以将格式更改为mailbox标准库中模块可识别的格式。然后你可以让那个模块处理所有的解析。

于 2011-09-01T02:34:12.203 回答